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1. Acaena buchananii - Sow seeds and use 65ºF for 25 days, then move to the fridge  (25-39F)for 45 days. After move to 50-60ºF: were germination will be spread out over many months. A slow germinator, some seeds will germination next spring.

2. Agastache aurantiaca 'Coronado' - Sow at 70-80F, germination  in 5-21 days, Surface sow, light helps with germination.

3. Abelmoschus esculentus - soak seed, germination in less than 2 weeks at 68ºF, .

4. Abrus precatorius - nick and soak, germination in less than 2 weeks at 59ºF, .

5. Abutilon vitifolium - germination in less than 2 weeks at 68ºF, .

6. Acaena microphylla - Sow seeds and use 65ºF for 25 days, then move to the fridge  (25-39F)for 45 days. After move to 50-60ºF: were germination will be spread out over many months. A slow germinator, some seeds will germination next spring.

7. Acanthus balcanicus -  Soak seeds in warm water for 36 hours, 64 to 72°F and moist for the first 4 weeks. After  kept at a cold temperature between 25 and 39°F for 5 weeks. , germination irregular, often several months but many times with in 10 days.

8. Acanthus mollis -  Soak seeds in warm water for 36 hours, Sow at Max. 45-50ºF, germination irregular, often several months but many times with in 10 days.

9. Acanthus syriacus -  Soak seeds in warm water for 36 hours, 64 to 72°F and moist for the first 4 weeks. After  kept at a cold temperature between 25 and 39°F for 5 weeks. , germination irregular, often several months but many times with in 10 days.

10. Acer ginnala - 4 weeks at 75ºF, 4 months at 39º, then 68ºF

11. Achillea ageratum 'Moonwalker'  - Surface sow, germination in 7-15 days at F 70.

12. Achillea clypeolata - Surface sow, Light needed for best germination, which should occur in 7-15 days at F 70.

13. Achillea erba-rotta spp. moschata - Germination is sprerad out over many weeks, use 45-65F, for best results.

14. Achillea filipendulina 'Parkers'  - Surface sow, germination in 7-15 days at F 70.

15. Achillea millefolium 'Cassis'  Surface sow, light needed for best germination  in 7-15 days at F 70. ºF

16. Achillea millefolium 'Cherry Queen'   - Surface sow, germination in 7-15 days at F 70.

17. Achillea nana - Surface sow, germination in 7-28 days at F 70-78.

18. Achillea ptarmica - germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results., .

19. Achillea ptarmica 'The Pearl Superior' -Germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results.,

20. Achillea sib.Var. camt.  Love Parade' - Surface sow, germination in 7-15 days at F 70.

21. Achillea tomentosa 'Aurea' - Surface sow, germination in 7-15 days at F 70.

22. Achillea X Taygata 'Colorado' - Surface sow, germination in 7-15 days at F 70.

23. Achillea X taygata 'Summer Berries' - Surface sow, germination in 7-15 days at F 70.

24. Achillea X Taygata 'Summer Pastels' - Surface sow, germination in 7-15 days at F 70.

25. Acinos alpinus -  Lightly cover and use 3-4 weeks at  68-75ºF, if no germination, 4-6  weeks at 39ºF, then back to 68ºF.

26. Acmella oleracea - germination in less than 2 weeks at 68ºF, .

27. Acokanthera oblongifolia - soak seed, germination in less than 2 weeks at 68ºF, .

28. Aconitum species - Sow outdoors, 30 days at 68ºF, 4-6 months at 21ºF, move to 53ºF for germination. Seeds need freezing temps to break down the chemicals that inhibit seed germination Fresh seed collected and not dried will germinate right away but once seed dries and is stored it goes into dormancy which needs a warm and then a very cold period to break that dormancy- Many other species in the family behave the same way too.

29. Aconitum carmichaelii -  Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in the fridge for  6 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months.

30. Aconitum napellus - Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in cold fridge for 6 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months. Or best-sow in a pot in the fall and seal up in a clear plastic bag and put in a sheltered location to over winter out side for germination next spring.

31. Aconitum napellus 'Carneum' - Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in the fridge for 6 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months. Or best-sow in a pot in the fall and seal up in a clear plastic bag and put in a sheltered location to over winter out side for germination next spring.

32. Aconitum napellus 'Newry Blue' - Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in the fridge for 6 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months. Or best-sow in a pot in the fall and seal up in a clear plastic bag and put in a sheltered location to over winter out side for germination next spring.

33. Aconitum septentrionale 'Ivorine' - Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in cold fridge for (F.29-32)    7 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months. Or sow in a pot in the fall and over winter outside.

34. Aconitum species - sow outdoors, 30 days at 68ºF, 4-6 months at 21ºF, move to 53ºF for germination.

35. Aconitum vulparia - Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then place in the fridge for 6 weeks, move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months. Or best-sow in a pot in the fall and seal up in a clear plastic bag and put in a sheltered location to over winter out side for germination next spring.

36. Aconitum x arendsii   Sow in a bag with moist seed mix and keep at 70ºF for 3 weeks, then move to 20-26F for 6 weeks then move to F55 were germination will occur in 1-4 weeks, do not throw away seed trays for at least 12 months.

37. Aciphylla simplex - Sow at 64-74ºF for 25 days, move to 15-21ºF for 5 weeks, Then move to 40-45F for germination. Or sow out side in early fall.

38. Acroclinium roseum 'Tetra Red'  Best Sown outdoors in situ, germination in less than 2 weeks at 72ºF,

39. Actaea rubra  neglecta - Sow seed into a plastic bag with moist seed mix and keep at 60-70ºF for 3 weeks, move to the fridge for for 6 weeks, then move to 50F were germination should occur. Sometimes germination take two years- so do not discard seeds trays if no germination.

40. Actaea rubra - Sow seed into a plastic bag with moist seed mix and keep at 60-70ºF for 4 weeks, move to the fridge for for 6 weeks, then move to 50F were germination should occur. Sometimes germination take two years- so do not discard seeds trays if no germination.

41. Adenophora bulleyana -  Surface sow and germinate the seeds around F45 -50, Higher temps will produce poorer results. Germination  is irregular, from 1-8 weeks.

42. Adenophora lilifolia -  Surface sow and germinate the seeds around F45 -50, Higher temps will produce poorer results. Germination  is irregular, from 1-8 weeks.

43. Adenophora liliifolia - 3-4 weeks at 68ºF, if no germination. 4 weeks at 39ºF, then 68ºF

44. Adenophora takedae -  Surface sow and germinate the seeds around F45 -50, Higher temps will produce poorer results. Germination  is irregular, from 1-8 weeks.

45. Adonis vernalis - Placed in layers of wet sand - alternately a thin layer of seeds and a layer of well-moistened sand etc. keep outside in the shade to benefit from weather effects - especially winter. A fine wire mesh will protect them from mice and birds. In spring frequently check to see if germination has begun. may take one or two years.

46. Aethionema grandiflorum - Use 70ºF and if no germination in 4 weeks, move to fridge for 20 days then back to  70ºF.  Keep seed medium moist but not wet.

47. Aethionema schistosum - Use 70ºF and if no germination in 4 weeks, move to fridge for 20 days then back to  70ºF.  Keep seed medium moist but not wet.

48. Agalinis species - Lightly cover and use 3-4 weeks at  68-75ºF, if no germination, 4-6  weeks at 39ºF, then back to 68ºF.

49. Agapanthus 'Blue Bird - Cover seeds completely, darkness need for germination, use F 70, 3-5 weeks

50. Agapanthus 'Head bourne Hybrids' - Cover seeds completely, darkness need for germination, use F 70, 3-5 weeks.

51. Agapanthus spGermination is spread out over many weeks  at 75ºF, slow & erratic germination.

52. Agastache anisata alba - germination in less than 2 weeks at 68ºF, .

53. Agastache anisata 'Honey' - germination in less than 2 weeks at 68ºF, .

54. Agastache astromontana  'Pink Pop'  Sow at 70-80F, germination  in 5-15 days, Surface sow, light helps with germination.

55. Agastache aurantiaca ‘Coronado’ -  Sow at 70-80F, germination  in 5-15 days, Surface sow, light helps with germination.

56. Agastache 'Blue Delight' - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination. If no germination move to F 40. for three weeks, then back to F 70.

57. Agastache 'Blue Honey Bee - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination.

58. Agastache cana ‘Purple Pygmy' Germination in 5-21 days at 68-75ºF,  surface sow seeds, light needed for best germination.

59. Agastache foeniculum 'Blue Compact' - Germination in 5-21 days at 68-75ºF,  surface sow seeds, light needed for best germination.

60. Agastache foeniculum 'Golden Jubilee'- Germination in 5-21 days at 68-75ºF,  surface sow seeds, light needed for best germination.

61. Agastache mexicana - germination in less than 2 weeks at 68ºF, .

62. Agastache mexicanum ‘Carlile Carmine’ - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination.

63. Agastache nepetoides  - Sow seeds and use 70ºF, gemination is spread out over many weeks or use 8 weeks at 39ºF, move to 70ºF for germination.

64. Agastache pallidiflora - germination in less than 2 weeks at 68ºF, .

65. Agastache rupestris  Sow at F 70, germination in 5-20 days, grow out on the dry side, do not water-log the soil medium. If no germination move to fridge (25-39F) for 3 weeks.

66. Agastache scrophulariaefolia - 8 weeks at 39ºF, move to 68ºF for germination.

67. Agastache scrophulariifolia 'Blue Licorice' -  Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination. If no germination in the above time: Use 8 weeks at 39ºF, move to 68ºF for germination.

68. Agastache scrophulariifolia 'White Licorice'  - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination. If no germination in the above time: Use 8 weeks at 39ºF, move to 68ºF for germination.

69. Agastache urticifolia  - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination. If no germination in the above time: Use 8 weeks at 39ºF, move to 68ºF for germination.

70. Agastache 'White Honey Bee' - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination.

71. Agastache 'White Spike' - Sow at F 70, germination  in 5-15 days, Surface sow, light helps with germination.

72. Agastache 'White Spike' - Sow at F 70, germination in 5-15 days, Surface sow, light helps with germination. If no germination move to F 40. for three weeks, then back to F 70.

73. Agastache x lavender - germination in less than 2 weeks at 68ºF, .

74. Ageratum houstonianum - germination in less than 2 weeks at 80ºF .  Surface sow seeds, light needed for best results., .

75. Agrimonia eupatoria - 3-4 weeks at 68ºF, if no germination., 30 days at 39ºF, then 68ºF

76. Agrimonia procera - 3-4 weeks at 68ºF, if no germination., 30 days at 39ºF, then 68ºF

77. Agrostemma coronaria 'Blood Red' - Sows seeds and use F. 70.  germination in 10-20 days.

78. Agrostemma githago 'Ocean Pearl' - Sow seeds and use F. 70.  Germination in 10-20 days.

79. Agrostemma githago 'Purple Queen' - Sow seeds and use F. 70.  Germination in 10-20 days.

80. Ajuga genevensis  - Lightly cover seeds and use a germination temperature  of F 45-50, 21-45 days. Grow seedlings out cool for the first 1-2 months. if no germination in 4 weeks, move to the fridge for 4 to 6 weeks.

81. Ajuga reptans - Lightly cover seeds and use a germination temperature  of F 50, 21-30 days. Grow seedlings out cool for the first 1-2 months. Or try: , 70ºF, if no germination in 4 weeks, move to the fridge for 4 to 6 weeks.

82. Alcea 'Country Garden Mixed' - Surface sow, light needed for best germination. 10-14 days at F 65.

83. Alcea ficifolia hybrids 'Mixed Colors' Germination in 1to 2 weeks at 70ºF . Surface sow, light needed for best germination. If no germination in 3 weeks,  move to 32-39ºF for 4 weeks.

84. Alcea 'Happy Lights Mixed' - Surface sow, light needed for best germination. 10-14 days at F 65.

85. Alcea nigra 'The Watchman' - Surface sow, light needed for best germination. 10-14 days at F 65.

86. Alcea rosea 'Black Beauty' - Surface sow, light needed for best germination. 10-14 days at F 65. After germination begins cover seed slightly with soil-medium.

87. Alcea rosea 'Chater's Double Appleblossom Pink - Surface sow, light needed for best germination. 10-14 days at F 65.

88. Alcea rosea 'Chater's Double Chamois' - Surface sow seeds, light needed for best germination, 10 days at F 70.

89. Alcea rosea 'Chater's Double Lavender Queen' -  Surface sow seeds, light needed for best germination, 10 days at F 70

90. Alcea rosea 'Chater's Double Maroon' -  Surface sow seeds, light needed for best germination, 10 days at F 70

91. Alcea rosea 'Chater's Double Newport Pink' -  Suface sow seeds, light needed for best germination, 10 days at F 70

92. Alcea rosea 'Chater's Double Purple' -  Suface sow seeds, light needed for best germination, 10 days at F 70

93. Alcea rosea 'Chater's Double Violet' -  Surface sow seeds, light needed for best germination, 10 days at F 70 As seeds germinate cover with some medium,

94. Alcea rosea 'Chater's Double Violet' -  Surface sow seeds, light needed for best germination, 10 days at F 70 As seeds germinate cover with some medium,

95. Alcea rosea 'Chater's Double White' - Surface sow seeds, light needed for best germination, 10 days at F 70 As seeds germinate cover with some medium,

96. Alcea rosea nigra 'Black Beauty' -  Surface sow seeds, light needed for best germination, 10 days at F 70

97. Alcea rosea nigra 'The Watch Man' - Surface sow, light needed for best germination. 10-14 days at F 65.

98. Alcea rosea 'Peaches N' Dreams' - Surface sow, light needed for best germination. 10-14 days at F 65.

99. Alcea rosea 'Summer Carnival Mixed' - Surface sow, light needed for best germination. 10-14 days at F 65.

100. Alcea rosea 'Summer Carnival Pink - Surface sow, light needed for best germination. 10-14 days at F 65.

101. Alcea rosea 'Summer Carnival Yellow Shades - Surface sow, light needed for best germination. 10-14 days at F 65.

102. Alcea rugosa - Surface sow seeds -  light needed for best germination.  Starts in 10-14 days at F 55-65. Germination is spread out over many weeks.

103. Alchemilla alpina - Sow at 65ºF for 3 weeks then  move to Fridge for 3 to 5  weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

104. Alchemilla epipsila - Sow at 65ºF for 3 weeks then  move to Fridge for 3 to 5  weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

105. Alchemilla mollis - Germination is spread out over many weeks  at 60ºF, slow germination.

106. Alchemilla mollis - Sow at 65ºF for 3 weeks then  move to Fridge for 3 weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.  Or sow and use 40-55F, germination will be spread out over a few months.

107. Alchemilla mollis Robusta - Sow at 65ºF for 3 weeks then  move to Fridge for 3 weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

108. Alchemilla mollis 'Select' - Sow at 65ºF for 3 weeks then  move to Fridge for 3 weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

109. Alchemilla mollis 'Thriller' - Sow at 65ºF for 3 weeks then  move to Fridge for 3 weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

110. Alchemilla saxatilis - Sow at 65ºF for 3 weeks then  move to Fridge for 3 weeks, return to 65ºF were germination will occur in two weeks. Light helps germination so surface sow.

111. Allium acuminatum  - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator (32-39F)for 6 weeks, after move to 55ºF for germination. Or sow  and put out side in early fall for germination in the spring.

112. Allium aflutunense 'Purple Sensation' - Sow at 70ºF for 4 weeks,  then move to the refrigerator for 6 weeks, after move to 55ºF for germination.

113. Allium amethystinum - sow at 39ºF, germination. erratic

114. Allium ampeloprasum - germination in less than 2 weeks at 60ºF, .

115. Allium amphibolum - germination in less than 2 weeks at 68ºF, .

116. Allium carinatum ssp pulchellum - 3-4 weeks at 68ºF, if no germination., 30 days at 39ºF, then 68ºF

117. Allium cepa - germination in less than 2 weeks at 68ºF, .

118. Allium cernuum  Best at 12 weeks at 30 to 39ºF, move to 65-70ºF for erratic germination. Some seed might take 2 years or more. Try soaking seeds in hot water, let soak for 24 hours and change the water with new hot water every 8 hours.  in 7-65 days.

119. Allium christophii - 6 weeks at 39ºF, move to 68ºF for erratic germination.

120. Allium cyaneum - 6 weeks at 39ºF, move to 68ºF for erratic germination.

121. Allium cyatophorum var. farreri - Sow at 70ºF for 4 weeks,  then move to the refrigerator 30-39ºF for 6 weeks, after move to 55-65ºF for germination.

122. Allium fistulosum - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator for 6 weeks, after move to 55ºF for germination.

123. Allium flavum - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator (32-39F)for 6 weeks, after move to 55ºF for germination. Or sow  and put out side in early fall for germination in the spring.

124. Allium geyeri - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator for 6 weeks, after move to 55ºF for germination.  Or so in a pot and put out side in the fall

125. Allium giganteum - 12 weeks at 39ºF, move to 68ºF for erratic germination.

126. Allium jesdianum - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator (or put outside over winter) for 6 weeks, after move to 55 -65ºF for germination.

127. Allium karataviense - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator for 6 weeks, after move to 55ºF for germination.  Or so in a pot and put out side in the fall.

128. Allium karataviense - sow outdoors in the fall for spring germination.

129. Allium 'Mixed' - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator for 6 weeks, after move to 55ºF for germination.  Or so in a pot and put out side in the fall.

130. Allium moly - sow at 39ºF, germination in 9-11 weeks, move to 68ºF  were more seeds should begin germination.

131. Allium oreophilum (ostrowskianum) - 2 weeks at 68ºF, 4 weeks at 39º, move to 68º for germination.

132. Allium rosenbachianum - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator 30-39ºF for 6 weeks, after move to 55 -65ºF for germination.

133. Allium schoenoprasum - sow outdoors, germination in less than 2 weeks at 68ºF, .

134. Allium scorodoprasum 'jajlae' - 2 weeks at 39ºF, move to 68ºF for germination.

135. Allium senescens -  Sow at 70ºF, lightly cover seeds, with germination  in 7-15 days. If no germination, 12 weeks at 30-39ºF, move to 68ºF for erratic germination.

136. Allium senescens - 12 weeks at 39ºF, move to 68ºF for erratic germination.

137. Allium senescens ssp montanum -  Sow at 75-85ºF, lightly cover seeds, with germination  in 7-15 days.

138. Allium sikkimensis - 4 weeks at 39ºF, move to 68ºF for  germination.

139. Allium sphaerocephalum - Germination is spread out over many weeks  at 68ºF, slow germination

140. Allium splendens - germination in less than 2 weeks at 68ºF, .

141. Allium stellatum - germination in less than 2 weeks at 68ºF, .

142. Allium stipitatum Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator 30-39ºF for 6 weeks, after move to 55 -65ºF for germination.

143. Allium tanguticum -  Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator 30-39ºF for 6 weeks, after move to 55 -65ºF for germination.

144. Allium tanguticum -Start with  4 weeks at 68ºF,  most of the seeds willgerminate, once large enough remove seedlings and move the rest of the seeds to 32- 39º, for 4 weeks then move to 68º for germination.

145. Allium triccocum - Sow at 70ºF for 4 weeks, remove those seedlings that have started to grow and then move the remaining seeds to the refrigerator for 6 weeks, after move to 55ºF for germination.

146. Allium tuberosum - 12 weeks at 39ºF, move to 68ºF for erratic germination.

147. Allium ursinum -  Sow at 70ºF for 4 weeks, remove what ever plants there are and then move  the remaining seeds to the refrigerator for 6 weeks, after move to 55-65ºF for germination.

148. Alonsoa meridionalis   - Germination in less than 2 weeks at 65-74ºF.  Surface sow seeds.

149. Alonsoa meridionalis ‘Shell Pink' Germination in less than 2 weeks at 65-74ºF.  Surface sow seeds.

150. Alonsoa warcewicsii  - germination in less than 2 weeks at 65ºF, .

151. Alstroemeria ‘Dandy Candy'  - Soak seed in warm water for 3 days, changing the water once a day with fresh warm water. Cover seeds and keepat 65-70F for three weeks then move to 53-40F for four weeks. Germination in 2-30 weeks at F 55-65.

152. Alstroemeria aurantiaca ‘Orange'  - Soak seed in warm water for 3 days, changing the water once a day with fresh warm water. Cover seeds and keepat 65-70F for three weeks then move to 53-40F for four weeks. Germination in 2-30 weeks at F 55-65.

153. Alstroemeria 'Dr. Salter's  Hybrids' Soak seed in warm water for 3 days, changing the water once a day with fresh warm water. Cover seeds lightly with germination in 2-30 weeks at F 55-65.

154. Alstroemeria hookerii  Soak seed in warm water for 3 days, changing the water once a day with fresh warm water. Cover seeds and keepat 65-70F for three weeks then move to 53-40F for four weeks. Germination in 2-30 weeks at F 55-65.

155. Alternanthera 'Purple Knight' - Cover seeds lightly and use 75-80F, once seedlings start to grow lower to 65F.

156. Alyssoides utriculata 'Lost April' - Germination in less than 2 weeks at 75ºF, If no gerination in 4 weeks put in the fridge (29-39F)  for three weeks.

157. Alyssum ‘Oriental Night'  Surface sow seeds, light helpful. Use F. 70-75, germination in 5-20 days.

158. Alyssum montanum 'Mountain of Gold' - Surface sow seeds, light helpful. Use F. 70-75, germination in 5-20 days.

159. Alyssum argenteum - Surface sow seeds, light helpful. Use F. 70-75, germination in 5-20 days.

160. Alyssum aurinia saxatilis 'Gold Ball' - Surface sow seeds, light helpful. Use F. 70-75, germination in 5-20 days.

161. Alyssum maritima 'New Carpet of Snow'  germination in less than 2 weeks at 75ºF, .

162. Alyssum saxatile - germination in less than 2 weeks at 75ºF, .

163. Alyssum wulfenianum - germination in less than 2 weeks at 75ºF, .

164. Amaranthus aurora - Surface sow seeds, light needed for germination, use F 75. germination in 5-15 days.

165. Amaranthus caudatus 'Red Spire'  Germination in less than 2 weeks at 72-80ºF soil temps.

166. Amaranthus gangeticus - germination in less than 2 weeks at 72ºF, .

167. Amaranthus hypochondriacus - germination in less than 2 weeks at 72ºF, .

168. Amaranthus 'Illumination' - Surface sow seeds, light needed for germination, use F 75. Germination in 5-15 days.

169. Amaranthus 'Illumination' - Surface sow seeds, light needed for germination, use F 75-80. germination in 5-15 days.

170. Amaranthus 'Motlen Fire' - Surface sow seeds, light needed for germination, use F 75. Germination in 5-15 days.

171. Amaranthus paniculatus - germination in less than 2 weeks at 72ºF, .

172. Ammobium grandiflora - germination in less than 2 weeks at 68ºF, .

173. Amorpha canescens - nick coat, germination in less than 2 weeks at 68ºF, .

174. Ampelopsis veitchi - Soak seeds in warm water for two days, change water every 12 hours with fresh water. lightly cover seeds and use 70ºF for germinationwhich is spread out over many weeks.

175. Amsonia hubrichtii - Lightly cover seeds and use 40-50ºF,  germination irregular and spread out over  many months.  Keep sown seeds for a two years.to allow all the seeds to germinate.

176. Amsonia illustris - 6 weeks at 39ºF, then move to 68ºF, germination. erratic,  many months.

177. Amsonia taberanaemontana - 6 weeks at 39ºF, then at 68ºF, germination. erratic,  many months

178. Anacyclus depressus 'Garden Gnome' - Use F.70, germination in 5-15 days. Do not use overly wet medium but do not let the seed medium dry out.

179. Anaphalis margaritacea 'New Snow' - Lightly cover seeds, germination in 2-3 weeks at F 65.  Seed is small.

180. Anaphalis margaritacea 'New Snow Select' - Germination in less than 2 weeks at 68-78ºF, .Surface sow seeds and keep moist.

181. Anaphalis triplinervisLightly cover seeds, germination in 2-3 weeks at F 65.  Seed is small.

182. Anchusa azurea - germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results., .

183. Anchusa azurea - Sow at 65ºF, germination occurres over a 1-10 week period.

184. Anchusa azurea 'Dropmore Strain' - Sow seeds and use F 75 Days and F 60 nights, germination in 3 to 9 weeks. Grow out cool.

185. Anchusa azurea 'Feltham Pride' - Sow seeds and cover 1/4 inch deep. and use F 70. Days and F 60 nights, germination starts in 3 weeks. Grow out cool.

186. Anchusa capensis 'Blue Angel' - Sow at 65ºF, germination occures over a 1-10 week period.

187. Anchusa officinalis - Sow seeds and cover 1/4 inch deep. and use F 70. Days and F 60 nights, germination in 3 weeks. Grow out cool.

188. Andropogon gerardi Germination  is spread out over a few weeks at 68ºF, . Lightly cover seeds and keep moist...

189. Androsace 'Mixed' - Sow on top of moist seed medium and  keep at room temp for one week then put in fridge ( cover container) for five weeks move to 55F. Germination takes place from 1 to 20 weeks.

190. Androsace 'Stardust' - Sow on top of moist seed medium and  keep at room temp for one week then put in fridge ( cover container) for five weeks move to 55F. Germination takes place form 1-20 weeks.

191. Anemone baldensis -Sow in a tray and keep at F.70 germination 3 to 6 weeks. Or sow outside in the fall for spring germination. If no germination move to  24-26F for 6 weeks.

192. Anemone hupehensis  - Germination at 65-75° F in 3 to 4 weeks, keepmoist.  If  No germination move to  26-40° F for 4 weeks, then move back to 65-75F.

193. Anemone magellanica  - Sow seed in a bag with some moist seed mix and place in fridge for 4 weeks, Sow in a tray and keep at F65. germination 3 weeks. Or sow outside in the fall for spring germination.

194. Anemone pulsatilla  'Dwarf' - Sow seed in a bag with some moist seed mix and place in fridge for 4 weeks, Sow in a tray and keep at F65. germination 3 weeks. Or sow outside in the fall for spring germination.

195. Anemone pulsatilla( vulgaris) 'Mixed Colors' - Sow seed in a bag with some moist seed mix and place in fridge for 5 weeks, Sow in a tray and keep at F65. germination 3 weeks. Or sow outside in the fall for spring germination.

196. Anemone rivularis - Sow in a plastic bag with moist seed starting mix and keep at 70ºF for 4 weeks, then move to refrigerator for 5 weeks. Afterwards  sow into a tray or large pot and move to 50ºF were germination will occur over a number of weeks. Keep for at least two years.

197. Anemone sylvestris  - Sow in a tray and keep at F.70 germination 3 to 6 weeks. Or sow outside in the fall for spring germination. If no germination move to  24-26F for 6 weeks.

198. Anemone tomentosa  - Sow seed in a bag with some moist seed mix and place in fridge for 4 weeks, Sow in a tray and keep at F65. germination 3 weeks. Or sow outside in the fall for spring germination. Or sow and use F55-60. with germination in a few weeks.

199. Anemone virginiana v. riparia -Sow in a plastic bag with moist seed starting mix and keep at 70ºF for 4 weeks, then move to refrigerator for 5 weeks. Afterwards  sow into a tray or large pot and move to 50ºF were germination will occur over a number of weeks. Keep for at least two years.

200. Anemonopsis macrophylla - Sow seed in a bag with some moist seed mix and place in fridge for 6 weeks, Sow in a tray and keep at F50. germination  starts in 3 weeks. Or sow outside in the fall for spring germination. germination is slow and spread out over many months, do not discard seed trays for a year or two.

201. Anethum graveolens - sow outdoors, germination in less than 2 weeks at 60ºF .  Surface sow seeds, light needed for best results., .

202. Angelica archangelica -  Sow seed in a bag with some moist seed mix and place in fridge for 9 weeks, Sow in a tray and keep at F50. germination  starts in 3 weeks. Or sow outside in the fall for spring germination. germination is slow and spread out over many months, do not discard seed trays for a year or two.

203. Angelica gigas - Lightly cover seeds and use F 55, germination is spread out over many months, do not discard seed tray until after 24 months.  Keep medium moist at all times but not wet.  Sometimes this seed needs two cold periods. Each lasting 6 weeks, with a 4 week warm period before each cold period.

204. Anisodontea sp - germination in less than 2 weeks at 68ºF, .

205. Antennaria dioica - surface sow seeds and use 45F, germination is spread out over a few months.  Might be helpful after  5 days to place the seeds in the fridge for 2 weeks.

206. Anthemis sancti-johannes - Surface sow seeds and use 70ºF, germination in 5-18 days.

207. Anthemis tinctoria - germination in less than 2 weeks at 68ºF, .

208. Anthemis tinctoria 'Kelwayi' - Surface sow seeds and use 70ºF, germination in 5-18 days.

209. Anthriscus  sylvestris 'Ravens Wing' - Use 30 days at 68ºF, 6 weeks at 32-39ºF, move to 53-60ºF for germination. Which is spread out over many weeks.

210. Anthriscus cerefolium - 30 days at 68ºF, 4-6 weeks at 39º, move to 53º for germination.

211. Anthyllis montana "rubra'   Sow at  66-74ºF for 3 weeks, then move to 26-38ºF for 5 weeks , then to 42-55ºF for germination over a few weeks.

212. Anthyllis vulneraria - germination in less than 2weeks at 68ºF, .

213. Antirrhinum braun-blanquetti - thinly over seeds and keep at 70ºF for 4 weeks,  then 5 weeks at 39º, move to 53-59º for germination.  Light needed for best results.

214. Antirrhinum braun-blanquettii - Thinly cover seeds and keep at 70ºF for 4 weeks, if no germination then 5 weeks at 32-39º, move to 53-59º for germination.  Light needed for best results.

215. Antirrhinum 'LaBella Mix'  - Germination in less than 2 weeks at 73ºF .  Surface sow seeds, light needed for best results.,

216. Antirrhinum majus - germination in less than 2 weeks at 73ºF .  Surface sow seeds, light needed for best results., .

217. Antirrhinum sempervirens  - Thinly cover seeds and keep at 70ºF for 4 weeks, if no germination then 5 weeks at 32-39º, move to 53-59º for germination.  Light needed for best results.

218. Antirrhinum siculum - germination in less than 2 weeks at 73ºF .  Surface sow seeds, light needed for best results., .

219. Apium graveolens var. - 3 days damp paper towel, sow outside if nite > 55ºF

220. Apocynum androsaemifolium - germination in less than 2 weeks at 68ºF, .

221. Aquilegia  'Biedermeier Mix' - Surface sow onto moist medium, light needed for best germination. After sowing use 70F days and 50 F night germ in 1-4 weeks. Can be spread out over many weeks.

222. Aquilegia  'Dragon Fly Mix' - Surface sow onto moist medium, light needed for best germination. After sowing use 70F days and 50 F night germ in 1-4 weeks. Can be spread out over many weeks.

223. Aquilegia  vulga. 'Blue barlow' - Surface sow on moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. or use a steady 45F.Germination starts in 1-4 weeks. Germination is spread out over many weeks.

224. Aquilegia ‘William Guiness' Germinationis spread-out over 8 weeks, start at 39-55ºF, after 4 weeks  move to 68ºF  Surface sow seeds, light needed for best results.

225. Aquilegia alpina - 8 weeks at 39ºF, move to 68ºF .  Surface sow seeds, light needed for best results. for germination.

226. Aquilegia atrata  - Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

227. Aquilegia 'Barlow Mixed' - Surface sow seeds on to moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. Germination  starts in 1-4 weeks. Germination can be spread out over many weeks.

228. Aquilegia 'Blue Barlow' - Surface sow seeds on to moist seed medium, light needed for best germination. use  F 70 days and F 55-60 nights and bright light. Germination in 1-3 weeks. Germination can be spread out over many weeks.

229. Aquilegia buergeriana 'Calimero' - Surface sow seeds on to moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. Germination  starts in 1-4 weeks. Germination can be spread out over many weeks.

230. Aquilegia caerulea 'Kristall' -Surface sow seeds on to moist seed medium, light needed for best germination. use  F 70 days and F 55-60 nights and bright light. Germination in 1-5 weeks. Germination can be spread out over many weeks.

231. Aquilegia caerulea 'Red Hobbit' - Surface sow seeds on to moist seed medium, light needed for best germination. use  F 70 days and F 45-50 nights and bright light. Germination starts in 1-5 weeks. Germination can be spread out over many weeks.

232. Aquilegia 'Cameo Blush Pink' Surface sow seeds on to moist seed medium, light needed for best germination. use  F 70 days and F 45-55 nights and bright light. Germination in 1-5 weeks. Germination can be spread out over many weeks.

233. Aquilegia canadensis - Surface sow seeds on to moist seed medium, light neededfor best germination. After sowing put in fridge for three weeks in a plastic baggy. ( Or sow in a baggy with one tble spoon moist seed mix and put in the fridge for three weeks).  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

234. Aquilegia canadensis 'Corbett' - Surface sow seeds on to moist seed medium, light neededfor best germination. After sowing put in fridge for three weeks in a plastic baggy. ( Or sow in a baggy with one tble spoon moist seed mix and put in the fridge for three weeks).  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

235. Aquilegia canadensis 'Little Lanters'  Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks in a plastic baggy. ( Or sow in a baggy with one tble spoon moist seed mix and put in the fridge for three weeks).  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

236. Aquilegia 'Chocolate Solder'' - Surface sow seeds on to moist seed medium, light neededfor best germination. After sowing put in fridge for three weeks in a plastic baggy.  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

237. Aquilegia chrysantha - Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to F 70. Germination in 1-3 weeks and is spreadout over a few weeks.

238. Aquilegia chrysantha 'Denver Gold' - Surface sow seeds on to moist seed medium, light needed for best germination. Use F.70, if no germination after three weeks put in fridge for three weeks. Then move to F 70. germination in 1-3 weeks.

239. Aquilegia 'Danish Dwarf' - Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to F 70. germination in 1-3 weeks. Germination can be spread out over many weeks.

240. Aquilegia flabellata ‘Blue Angel' Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to F 60. germination in 1-8 weeks.

241. Aquilegia flabellata 'Mini Star Blue' - Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to F 60. germination in 1-8 weeks.

242. Aquilegia flabellata pumila 'Selection' Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to F 60. germination in 1-8 weeks.

243. Aquilegia flabellata 'White Angle' -Surface sow seeds onto moist seed medium, light needed for best germination. After sowing put in fridge for three weeks. Then move to 70F. days and 50 F nights. germination in 1-3 weeks. Germination can be spread out over many weeks.

244. Aquilegia fragrans - Surface sow seeds on to moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. Germination  starts in 1-4 weeks. Germination can be spread out over many weeks.

245. Aquilegia 'Grandmothers Garden'  - Surface sow on moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. or use a steady 45F.Germination starts in 1-4 weeks. Germination is spread out over many weeks.

246. Aquilegia 'Lavender and White' Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to 70F. days and 50 F nights.  germination in 1-3 weeks.

247. Aquilegia 'Light Pink Tower' - Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to F 70. germination in 1-3 weeks.

248. Aquilegia 'Lime Frost' -  Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to F 70. germination in 1-3 weeks.

249. Aquilegia 'McKana Giants' - Surface sow seeds on to moist seed medium, light needed for best germination.  Then move to F 70 days in bright light.and 55-60F nights.  Germination in 1-3 weeks. Germination can be spread out over many weeks.

250. Aquilegia 'Mrs. Scott Elliott's Strain' -Surface sow seeds on to moist seed medium, light needed for best results.  Use 70-75 F days and 40-50F nights. Germination in 1-3 weeks. germination can be spread out over many weeks.

251. Aquilegia 'Music Red & White' - face sow seeds on to moist seed medium, light needed for best germination. use  F 70 days and F 55-60 nights and bright light. Germination in 1-3 weeks. Germination can be spread out over many weeks. If no results move to 32-39F for 3weeks.

252. Aquilegia 'Music Red and Gold' - Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

253. Aquilegia rockii - Surface sow seeds on to moist seed medium, light needed for best germination. After sowing put in fridge for three weeks covered with plastic.  Then move to F 70. germination in 1-3 weeks. germination can be spread out over many weeks.

254. Aquilegia 'Snow Queen' - Surface sow seeds on to moist seed medium, light needed for best germination. Use F.70, if no germination after three weeks put in fridge for three weeks. Then move to F 70. germination in 1-3 weeks.

255. Aquilegia 'Song Bird Mixed' - Surface sow seeds on to moist seed medium, light needed for best germination. Use F.70, if no germination after three weeks put in fridge for three weeks. Then move to F 70. germination in 1-4 weeks.

256. Aquilegia vulgaris - 8 weeks at 39ºF, move to 68ºF .  Surface sow seeds, light needed for best results. for germination.

257. Aquilegia vulgaris ‘Tower Light Blue' Use 8 weeks at 39ºF, move to 68ºF .  Surface sow seeds, light needed for best results.

258. Aquilegia vulgaris 'Black Barlow'  -  Germination  is spread-out over 8 weeks at 39-55ºF,  then move to 68ºF  Surface sow seeds, light needed for best results.

259. Aquilegia vulgaris 'Clematiflora Hybrids' - Surface sow seeds on to moist seed medium, light needed for best germination. Use F.70, if no germination after three weeks put in fridge for three weeks. Then move to F 70 days and 50 Nights.  Germination in 1-4 weeks.

260. Aquilegia vulgaris 'Nora Barlow'  Germination  is spread-out over 8 weeks at 39-55ºF,  then move to 68ºF  Surface sow seeds, light needed for best results.

261. Aquilegia vulgaris plena 'Ruby Port'- Germination  is spreadout over 8 weeks at 39-55ºF,  then move to 68ºF .  Surface sow seeds, light needed for best results. for germination.

262. Aquilegia vulgaris 'Woodside Strain' - Germination  is spreadout over 8 weeks at 39-55ºF,  then move to 68ºF .  Surface sow seeds, light needed for best results. for germination.

263. Aquilegia yabeana - Surface sow onto moist medium, light needed for best germination. After sowing put in fridge three weeks.  Move to F 70. germ in 1-3 weeks. Can be spread out over many weeks.

264. Arabis alpina - germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results., .

265. Arabis caucasica  Compacta 'Snowball' - Surface sow seed, light needed for germination.Use 65F, 10-20 days.

266. Arabis caucasica ‘Rosea'  - Surface sow seed, light needed for germination. Use 65F, 10-20 days.

267. Arabis caucasica alpina 'Snowcap' -Surface sow seed, light needed for germination.Use 65F, 10-20 days.

268. Arabis procurrens 'Glacier'   Surface sow seed, light needed for germination.Use 65-73F, 10-20 days. If no germination move to 32-38F for three weeks then back to 65F.

269. Aralia cordata - sow in to plastic bag with one teaspoon of moist seed mix and seal up and place in the fridge for 90 days., move to 50-56ºF for germination.

270. Aralia racemosa - Lightly cover seeds and use 55F, germination is slow and spread out over a year. Do not discard seed trays for 18 months. Allow ungerminationinated seeds after the first season to over winter out side.

271. Arctotis x hybrids 'Harlequin Mix' - Germination in 3-5  at 60-70F,Surface sow seeds and firmly tamp down into the medium.

272. Arenaria montana  -  Very lightly cover seeds and use 66-70ºF, germination is slow and will take place over many weeks.

273. Arenaria montana 'Avalanche' - Very lightly cover seeds and use 66-70ºF, germination is slow and will take place over many weeks.

274. Arisaema consanguineum - Place seed in a plastic bag with moist seed mix and place in the fridge for 60 days, sow and keep at F45 to F 65.  germination in 1-10 weeks. Or sow and keep at 55-65F, many times germination will start in a few weeks.

275. Arisaema flavum -  Place fresh seed in a plastic bag with moist seed mix and place in the fridge for 60 days, sow and keep at F45 to F 65.  germination in 1-10 weeks. Or sow and keep at 55-65F, many times germination will start in a few weeks.

276. Arisaema triphyllum - Place fresh seed in a plastic bag with moist seed mix and place in the fridge for 60 days, sow and keep at F45 to F 65.  germination in 1-10 weeks. Or sow and keep at 55-65F, many times germination will start in a few weeks. Helpful to soak seeds in warm water for  two days.

277. Aristolochia clematitis  - Remove some of the "spongy" covering and soak the seeds in hot water for 2 days- change the water every 12 hours with hot water. Sow at 65-70ºF for 3 weeks, move to 24-39ºF (fridge ) for 6 weeks, then to  50-55ºF for germination. Will be spread out over a few months.

278. Armeria formosea' Large flowering Hybrids' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

279. Armeria hybrida 'Ornimental Mix' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

280. Armeria 'Joystick Lilac' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

281. Armeria 'Joystick Red' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

282. Armeria 'Joystick White' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

283. Armeria juniperifolia - soak seed, germination in less than 2 weeks at 68ºF, .

284. Armeria maritima - soak seed, germination in less than 2 weeks at 68ºF, .

285. Armeria maritima 'splendens' - Soak seeds in warm water for 2 days, changing the water every 12 hours. Sow and cover seeds, darkness needed for best germination in 10-20 days at F 65.

286. Artemisia absinthium - Germination in less than 2 weeks at 68ºF, .

287. Artemisia annua 'Sweet Annie'  - Surface sow seeds, they are very fine, use 74F, germination in 2-3 weeks. fast growing.

288. Artemisia stelleriana - Sow using a location were temps vary from 40-70F. germination is spread out from 2 weeks to four months- do not discard seed tray till next year. Some germination may occur after one year. keep soil moist but not overly wet.

289. Arum dioscoridis -Seeds are slow germinatators  that are best sown out side in a sheltered location.  germination can take place any were from a month to over 2 years. Seeds respond to many warm-cold periods best produced by normal seasonal changes out side.

290. Arum italicum  - Seeds are slow germinatators  that are best sown out side in a sheltered location.  germination can take place any were from a month to over 2 years. Seeds respond to many warm-cold periods best produced by normal seasonal changes out side.

291. Arum maculatum - Seeds are slow germinatators  that are best sown out side in a sheltered location.  germination can take place any were from a month to over 2 years. Seeds respond to many warm-cold periods best produced by normal seasonal changes out side.

292. Aruncus aethusifolius - 30 days at 68ºF, 4-6 weeks at 39º, move to 53º for germination.

293. Aruncus aethusifolius 'Noble Spirits' - Surface sow seeds onto moist seed mix and cover with plastic and place in the refrigerator for 6 weeks, then move to 70 ºF for germination. Or sow with a table spoon of moist (not wet) seed medium in a plastic bag and place in the fridge.

294. Aruncus dioicus - Surface sow at 65ºF, if no germination in 4 weeks, move to the fridge for three to five weeks, then back to 65F. Germination is spread out over many weeks. Or sow and keep at 50-60F, germination over a ten week period.

295. Asarina procumbens - Lightly cover seeds and use 65-70F, germination in a few days- if no germination in four weeks- move to the fridge for 3 weeks then back to 65-70F.

296. Asarina scandens - germination in less than 2 weeks at 68ºF, .

297. Asarina wisilizensia 'Red Dragon' - Lightly cover seeds and use 65-70F, germination in a few days- if no germination in four weeks- move to the fridge for 3 weeks then back to 65-70F.

298. Asarum canadensis - Sow  seed in a plastic bag with a table spoon of moist seed mix, keep at 73ºF for 45 days or more. Then place in the fridge for 50 days. Sow into a pot and use 50ºF. If no germination in 5 weeks, repeat the cycle from the beginning.

299. Asarum europaeum - Sow  seed in a plastic bag with a table spoon of moist seed mix, keep at 73ºF for 45 days or more. Then place in the fridge for 50 days. Sow into a pot and use 50ºF. If no germination in 5 weeks, repeat the cycle from the beginning.

300. Asclepias curassavica 'Red Butterfly'  Soak seeds in hot water for 24 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75.

301. Asclepias curassavica 'Silky  Gold'  -  Soak seeds in hot water for 24 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75.

302. Asclepias exaltata - 4 weeks at 39ºF in moist sand, move to 68ºF for germination.

303. Asclepias hallii - Soak seeds in hot water for 36 hours, changing the water with fresh water every 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination in 3 weeks, chill pots for 20 days.

304. Asclepias incarnata - 4 weeks at 39ºF in moist sand, move to 68ºF for germination.

305. Asclepias incarnata alba - 4 weeks at 39ºF in moist sand, move to 68ºF for germination.

306. Asclepias incarnata 'Ice Ballet' - Soak seeds in hot water for 36 hours, changing the water with fresh water every 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination in 3 weeks, chill pots for 21 days.

307. Asclepias incarnata 'Milkmaid' - Soak seeds in hot water for 36 hours, changing the water with fresh water every 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination in 3 weeks, chill pots for 21 days.

308. Asclepias incarnata 'Mixed' - Soak seeds in hot water for 36 hours, changing the water with fresh water every 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination in 3 weeks, chill pots for 20 days.

309. Asclepias incarnata 'Soulmate'  - Soak seeds in hot water for 36 hours, changing the water with fresh water every 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination in 3 weeks, chill pots for 20 days.

310. Asclepias physocarpa - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 4 weeks use four weeks in the fridge.

311. Asclepias sullivantii - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 4 weeks use six weeks in the fridge.

312. Asclepias syriaca- Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 5 weeks use three weeks in the fridge.

313. Asclepias tuberosa - 4 weeks at 39ºF in moist sand, move to 68ºF for germination.

314. Asclepias tuberosa - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 4 weeks use four weeks in the fridge.

315. Asclepias tuberosa 'Gay Butterflies' - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 4 weeks use four weeks in the fridge.(30-38F)

316. Asclepias verticillata - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 2 weeks use five weeks in the fridge.

317. Asclepias viridis  - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If little germination after 2 weeks use5 to 8 weeks in the fridge.

318. Asclepias X tuberosa  'Gay Butterflies Mixed' - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If no germinaton in 3 weeks put in the fridge for 5 weeks.

319. Asclepias X tuberosa  'Hello Yellow' - Soak seeds in hot water for 36 hours, changing the water with fresh water after 12 hours, Surface sow, light needed for best germination in 1-3 weeks at F 75. If no germinaton in 3 weeks put in the fridge for 5 weeks.

320. Asparagus densiflorous 'Myriocladus' -  Scratch seeds with a nail or rub lightly with sand paper then soak in hot water for 5 days. ( chang water every 12 hours with fresh hot water) Sow by covering seeds completely  with seed mix and use 78-80F, keep moist at all time. Germination in 1 to 5 weeks.

321. Asparagus densiflorous 'Sprengeri' -  Scratch seeds with a nail or rub lightly with sand paper then soak in hot water for 2 days. Sow by covering seeds completely  with seed mix and use 78F, keep moist at all time. germination in 1 to 3 weeks.

322. Asparagus officinalis 'Spitzenschleier'  Scratch seeds with a nail or rub lightly with sand paper then soak in hot water for 5 days. ( chang water every 12 hours with fresh hot water) Sow by covering seeds completely  with seed mix and use 78-80F, keep moist at all time. Germination in 1 to 5 weeks.

323. Asparagus 'Plumosus Nanus' ' -  Scratch seeds with a nail or rub lightly with sand paper then soak in hot water for 5 days. ( chang water every 12 hours with fresh hot water) Sow by covering seeds completely  with seed mix and use 78-80F, keep moist at all time. Germination in 1 to 5 weeks.

324. Asphodeline liburnica - Start with 3-4 weeks at 65-74ºF, if no germination., 30 days at 32-39ºF then moveback to 70F.

325. Asphodeline lutea - "Yellow Candle" - Lightly cover seeds and keep at F 70, germination in 10-30 days.

326. Asphodeline lutea - Start with 3-4 weeks at 65-74ºF, if no germination., 30 days at 32-39ºF then move back to 70F.

327. Aster alpinus 'Goliath' - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

328. Aster alpinus 'Mix' (50)  - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

329. Aster alpinus 'Pinkie'  Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

330. Aster alpinus 'TriMix' - Surface sow seeds, light helps with germination,  Use F 65-78,  germination is erratic from 1-10 weeks.

331. Aster alpinus 'White' -  germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results., .

332. Aster amellus 'Hybrids' - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

333. Aster amellus 'Rudolf Goethe' - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

334. Aster amellus 'Rudolf Goethe'- Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

335. Aster 'Astoria Deep Blue' - Germination is spread out over a few weeks  at 68ºF .  Surface sow seeds, light needed for best results., slow germination.

336. Aster 'Benarys Composition' - Germination is spread out over many weeks  at 68ºF .  Surface sow seeds, light needed for best results., slow germination.

337. Aster bigelovii - Use 3 or 4 weeks at 68-75ºF, if no germination., 45 days at 33-39ºF.

338. Aster diplostephioides  - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

339. Aster farreri Germination is spread out over many weeks  at 68ºF .  Surface sow seeds, light needed for best results., slow germination.

340. Aster 'Large Flowering Mix'- Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

341. Aster lateriflorus  'horizontalis' germination in less than 2 weeks at 68ºF .  Surface sow seeds, light needed for best results., .

342. Aster novi-angliae 'September Ruby' - Surface sow seeds, light helps germination, F 70 germination is erratic from 1-10 weeks.

343. Aster novi-belgii  Surface sow seeds, light helps germination,Use F 70 with germination  erratic from 1-10 weeks.

344. Aster novi-belgii 'royal blue' Germination is spread out over many weeks  at 68ºF .  Surface sow seeds, light needed for best results., slow germination.

345. Aster oolentangiensis - 4 weeks at 39ºF in moist sand, move to 68ºF for germination.

346. Aster tongolensis 'Wartburg Star'- Germination is spread out over a few weeks  at 68ºF .  Surface sow seeds, light needed for best results., slow germination.

347. Aster umbellatus - Use 3 or 4 weeks at 68-75ºF, if no germination., 45 days at 33-39ºF.

348. Astilbe 'Arendsi Hybrids' - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.45 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. germination can be delayed with out the variable night/day temps.

349. Astilbe 'Bella Mixture ' Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. Germination can be delayed without the variable night/day temps. Needs some work for best results.

350. Astilbe chinensis  -Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. Germination can be delayed without the variable night/day temps. Needs some work for best results.

351. Astilbe chinensis pumila - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. Germination can be delayed without the variable night/day temps. Needs some work for best results.

352. Astilbe 'Granda Mixture' - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. Germination can be delayed without the variable night/day temps. Needs some work for best results.

353. Astilbe japonica ‘Hybrids' - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. Germination can be delayed without the variable night/day temps. Needs some work for best results.

354. Astilbe 'Show Star Mix' - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. germination can be delayed with out the variable night/day temps.

355. Astilbe thunbergii ‘Hydrids'   - Fine seeds, surface sow, light needed for best germination, 1-4 weeks at F 70 days and  F.50 nights. Keep soil moist but not wet. Best if sown into a pot and then place the pot in a plastic bag. germination can be delayed with out the variable night/day temps.

356. Astilbe x arendsii - sow outdoors, 30 days at 68ºF, 4-6 weeks at 21ºF, move to 53ºF for germination.

357. Astilboides tabularis - Surface sow, fine seeds, water from below.  Germination in 2-3 weeks at F70.  If no germination put in the fridge for three weeks.  Best to keep pots in a plastic bag until germination is complete- seed medium needs to be moist at all times but not wet.

358. Astragalus canadensis - nick and soak, germination in less than 2 weeks at 68ºF, .

359. Astragalus centralpinus - nick and soak, germination in less than 2 weeks at 68ºF, .

360. Astrantia major - 4 weeks at 68ºF, 12 weeks at 39º, move to 45º for germination.

361. Astrantia major 'Rosa' - Sow in plastic bag with some moist seed mix and keep at F. 70 four weeks then put in the fridge for 6 weeks, sow to a pot and cover seeds, darkness needed for best germination.  Use F 60 days and F 50 nights. 1-3 weeks.

362. Astrantia major 'Symphony' - Sow in plastic bag with some moist seed mix and keep at F. 70 four weeks then put in the fridge for 6 to 12 weeks, sow to a pot and cover seeds, darkness needed for best germination.  Use F 60 days and F 50 nights. 1-3 weeks. Or sow and put outside in early fall for germination in spring.

363. Astrantia major 'White' - Sow in plastic bag with some moist seed mix and put in the fridge for three weeks, sow to a pot and cover seeds, darkness needed for best germination.  Use F 60 days and F 50 nights. 1-3 weeks.

364. Astrantia maxima - Sow in plastic bag with some moist seed mix and keep at F. 70 four weeks then put in the fridge for 6 to 12 weeks, sow to a pot and cover seeds, darkness needed for best germination.  Use F 60 days and F 50 nights. 1-3 weeks. Or put outside in early fall for germination in spring.

365. Aubrietia ' Rose Cascade' - Surface sow seeds, light needed for best germination, use 75F, germination is spread out over many weeks. I have had good successes sealing the pots up in a plastic bag to keep the humidity high until the seeds germinate.

366. Aubrietia 'Cascade Mix' - Surface sow seeds, light needed for best germination, use 75F, germination is spread out over many weeks. I have had good successes sealing the pots up in a plastic bag to keep the humidity high until the seeds germinate.

367. Aubrietia hendersoni - Surface sow seeds, light needed for best germination, use 75F, germination is spread out over many weeks. I have had good successes sealing the pots up in a plastic bag to keep the humidity high until the seeds germinate.

368. Aubrietia 'Whitewell Gem' - Surface sow seeds, light needed for best germination, use 75F, germination is spread out over many weeks. I have had good successes sealing the pots up in a plastic bag to keep the humidity high until the seeds germinate.

369. Avena sativa 'French Black' - Germination less than two weeks at 65F, surface sow seeds and after germination add a thin layer of soil.

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