| Salvia 'Lady In Red' - Start with 4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germination then 4 weeks at 39ºF, then 68ºF again. |
| Salvia 'Sizzler Orchid' - Use 4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia amplexicaulis - Use 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF, |
| Salvia argentea - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia coccinea - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia farinacea - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia forskaohlei - Use 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF, |
| Salvia glutinosa - Try 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia hians - Use 3-4 weeks at 68ºF, if no germination., then 4 weeks at 39ºF, then back to 68ºF, germination can be spread out over many weeks. Surface sow seeds, light helps with germination. |
| Salvia horminum 'Pink Sunday' - Use 3-4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia jurisicii - Try 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia lyrata 'Purple Knockout' - Use 3 to 4 weeks at 70ºF. Surface sow seeds, light needed for best results., if no germination then use 3 to 4 weeks at 39ºF, then back to 65-70ºF |
| Salvia microphylla var. wislizeni syn. (S. lemmonii) - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia miltiorrhiza - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia nemorosa - Try 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia officinalis - Use 4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 4 weeks at 39ºF, then back to 68-73ºF |
| Salvia patens - Use 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia pratensis haematodes 'Indigo Forms' - Germination takes longer than 2 weeks at 68ºF, slow germination which is spread out over many weeks. |
| Salvia przewalskii - Use 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia recognita - Try 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia regeliana - Try 4 weeks at 68-75ºF, if no germination, 4 weeks at 33-39ºF, then 68-75ºF. Surface sow seeds, light helps with germination. |
| Salvia ringens - Just cover seeds and use 65-70F, germination occurs over a 1-10 week period. Soaking the seeds in warm water for 24 hours before sowing might help. |
| Salvia sclarea - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia sclarea 'Vatican White' - Start with 4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germination then 4 weeks at 39ºF, then 68ºF again. |
| Salvia sp ex Pamirs - 3-4 weeks at 68ºF. Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia superba 'Violet' -Use 4 weeks at 68-75ºF. Surface sow seeds, light needed for best results., if no germination., Use -4 weeks at 39ºF, then 68ºF |
| Salvia transsylvanica - Just cover seeds and use 65-70F, if no germination in 3 weeks, move to 39ºF for four weeks then 68ºF germination occures over a 1-10 week period. |
| Salvia transylvanica - 3-4 weeks at 68ºF, if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Salvia verticillata - Germination is spread out over many weeks at 68ºF, Might be helpful to soak the seeds for 24 hours in warm water, change the water after12hours with fresh water. Surface sow. |
| Sambucus canadensis - sow in a moist sand based seed mix for 60 days at 65ºFto 70ºF, then move to the fridge for 130 days. Or sow out side in late summer for germination next spring. |
| Sanguisorba officinalis - Germination takes longer than 2 weeks at 68ºF . Surface sow seeds, light needed for best results., slow germ. |
| Sanguisorba officinalis - Sow at 70ºF, if no germination in 4 weeks, chill seeds at 35ºF for 4 weeks-then move back to 70ºF. |
| Sanguisorba poterium - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Sanguisorba tenuifolia - Sow at 70ºF, if no germination in 4 weeks, chill seeds at 35ºF for 4 weeks-then move back to 70ºF. Keep medium moist but not overly wet. |
| Sanvitalia procumbens - Germination in less than two weeks at 68ºF, |
| Saponaria ocymoides - Germination in less than two weeks at 68ºF in dark, |
| Saponaria officinalis 'Plena' - Surface sow seed using 68ºF) for 25 days. then move to fridge for 36 days, then move to 55F for germination in 1 to 3 weeks. |
| Satureja hortensis - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Saxifraga minutifolia - Germination takes longer than 2 weeks at 68ºF, germination is spread out over many weeks. |
| Scabiosa caucasica - Germination in less than two weeks at 63ºF, |
| Scabiosa caucasica 'Dark Lavender' - Germination: 60°-70° F in 2 weeks. Needs light for good germination, so surface sow. |
| Scabiosa caucasica 'Fama' - Germination: 60°-70° F in 2 weeks. Needs light for good germination, so surface sow. |
| Scabiosa caucasica 'House Hybrids' - Germination: F 60°-70°, 2 weeks. Needs light for good germination so surface sow and lightly sprinkle on some seed medium as the seeds germinate. |
| Scabiosa caucasica 'Perfecta' - Germination: 60°-70° F in 2 weeks. Needs light for good germination, so surface sow. |
| Scabiosa caucasica 'Perfecta Lilac' - Germination: 60°-70° F in 2 weeks. Needs light for good germination, so surface sow. |
| Scabiosa columbaria Sow at 40ºF, germination is irregular, occurring from 1-15 weeks. |
| Scabiosa columbaria - sow at 39ºF, germ. erratic, often many months |
| Scabiosa graminifolia - Lightly cover seeds and keep at F65-70. Germination in 2-4 weeks. |
| Scabiosa japonica acutiloba - |
| Scabiosa japonica 'Alpina' - Sow at 70 ºF were germination should occur in two weeks |
| Scabiosa ochroeleuca 'Yellow' - Lightly cover seeds and keep at F65-70. Germination in 2-4 weeks. |
| Schefflera actinophylla - Cover seeds and use F. 75-80, germination takes 1 to 4 weeks. |
| Schefflera arboricola- Cover seeds and use F. 75-80, germination takes 1 to 4 weeks. |
| Schizonepeta tenuifolia - Germination in less than two weeks at 68ºF in dark, |
| Scutellaria alpina 'Arcobaleno' - Sow at 65ºF, if no germination in four weeks, move to the fridge for 3 weeks, then back to 65F. |
| Scutellaria altissima 'Violet' - Sow at 65ºF, if no germination in four weeks, move to the fridge for 3 weeks, then back to 65F. Germination is spread out over many weeks |
| Scutellaria baicalensis - - Germination in 3-4 weeks at 68ºF, Germination is sprerad out over many weeks. Might help so soak the seeds for 36 hours in hot water, change the water every 12 hours with fresh water. If no germination, use 4 weeks at 33-39F. |
| Scutellaria pontica - Sow at 65ºF, if no germination in four weeks, move to the fridge for 3 weeks, then back to 65F. |
| Scutellaria romana - Sow at 65ºF, if no germination in four weeks, move to the fridge for 3 weeks, then back to 65F. |
| Sedum 'Mixed' - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum acre - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum aizoon - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum ewersii - Surface sow seeds, germination starts in 2 weeks at 70F but maybe spread out over a month or more, sometimes a cold-moist period of 4 weeks helps. |
| Sedum forsterianum - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Sedum kamtschaticum - Germination takes longer than 2 weeks at 68ºF,Germination is spread out over many weeks. Surface sow - very fine seed that germinates best in light. |
| Sedum lanceolatum - Germination takes longer than 2 weeks at 68ºF,Germination is spread out over many weeks. Surface sow - very fine seed that germinates best in light. |
| Sedum pulchellum - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum reflexum - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Sedum reflexum - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum sexangulare - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum spectabile 'Mixed' - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum spurium coccineum - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum spurium 'Summer Glory' - Surface sow seeds, germination in 2 weeks at 70F. |
| Sedum ternatum - Surface sow seeds, germination starts in 2 weeks at 70F but maybe spread out over a month or more, sometimes a cold-moist period of 4 weeks helps. |
| Semiaquilegia ecalcarata - Use 3-4 weeks at 60ºF. Surface sow seeds, light needed for best results., if no germination move for 4 weeks to 39ºF, then 65ºF . Germination is spread out over many weeks. |
| Sempervivum arachnoideum - Surface sow seeds, germination in 2 weeks at 70F. |
| Sempervivum montanum - Surface sow seeds, germination in 2 weeks at 70F. |
| Sempervivum 'Perennial Mix' - Surface sow seeds, germination in 2 weeks at 70F. |
| Sempervivum 'Winter Hardy Mix' - Surface sow seeds, germination in 2 weeks at 70F. |
| Senecio cineraria - Germination in less than two weeks at 68ºF, |
| Serratula tinctoria - - Germination takes longer than 2 weeks at 68ºF, slow germ. |
| Sesamun indicum - sow outdoors, Germination in less than two weeks at 68ºF, |
| Sidalcea 'Party Girl Pink' - Sow seeds in a plastic bag with some moist seed mix and place in the fridge for 2 weeks, sow and keep at F 60, germination in 2-3 weeks. |
| Sidalcea malvaflora - Germination in less than two weeks at 60ºF, |
| Sidalcea X hybrida 'Pink' - Sow seeds in a plastic bag with some moist seed mix and place in the fridge for 2 weeks, sow and keep at F 60, germination in 2-3 weeks. |
| Sideritis syriaca - 3-4 weeks at 68ºF, if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Silene asterias - Germination in less than two weeks at 75ºF, |
| Silene bellidoides - Germination in less than two weeks at 75ºF . Surface sow seeds, light needed for best results., |
| Silene caroliniana Var. wherryi - Sow at 70ºF, if no germination in 3-4 weeks, move to the fridge for 2-4 weeks, then back to 70ºF. |
| Silene coeli-rosea - 3-4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Silene martima 'Robin White Breast' - Sow at 70ºF, if no germination in 3-4 weeks, move to the fridge for 2-4 weeks, then back to 70ºF. |
| Silene 'Peach Blossom' - Sow at 70ºF, if no germination in 4 weeks, move to the fridge for 2-4 weeks, then back to 70ºF. |
| Silene regia - 3-4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Silene schafta - Sow at 70ºF, if no germination in 4 weeks, move to the fridge (30-39ºF) for 4 weeks, then back to 70ºF. |
| Silene schafta 'Splendens' - Sow at 70ºF, if no germination in 4 weeks, move to the fridge (30-39ºF) for 4 weeks, then back to 70ºF. |
| Silene uniflora 'Compacta' - Sow at 70ºF, if no germination in 4 weeks, move to the fridge for 2-4 weeks, then back to 70ºF. |
| Silene virginica - 3-4 weeks at 68ºF . Surface sow seeds, light needed for best results., if no germ., 2-4 weeks at 39ºF, then 68ºF |
| Silphium dentata - 12 weeks at 39ºF, move to 68ºF for germ. |
| Silphium laciniatum - 12 weeks at 39ºF, move to 68ºF for germ. |
| Silphium perfoliatum - Cover with moist seed mix and use12 weeks at 39ºF, move to 68ºF for germination. Or sow and place outside in ashealtered location in the fall for germination in the spring. |
| Silphium terebinthaceum - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Silybum eburneum - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., , may benefit from kno3 |
| Silybum marianum v. sily - Germination in less than two weeks at 68ºF, , may benefit from kno3 |
| Sinningia sp. - - Germination takes longer than 2 weeks at 75ºF |
| Sisyrinchium angustifolium - use 4 weeks at 68ºF, if no germ., 4 weeks at 39ºF, then 68ºF, Germination can be spread out over many weeks. |
| Sisyrinchium bellum - Soak seeds in warm water for 24 hours. Sow and use 4 weeks at 65-75ºF, if no germination then .,4 weeks at 30-39ºF, then back to 68ºF. Plants look like small grass blades when small. |
| Sisyrinchium littorale - Sow at 70F, germination in 2-3 weeks, if no germination after four weeks move to the refridgerator for four weeks then back to 70F. |
| Sisyrinchium 'Mixed' - Soak seeds in warm water for 24 hours. Sow at 70F, germination in 2-3 weeks for many, remove seedlings after four weeks and move the pot to refridgerator for four weeks then back to 70F, were others will germinate, germination can be spread out over a few months. |
| Sisyrinchium striatum -Soak seeds in warm water for 24 hours. Sow and use 4 weeks at 65-75ºF, if no germination then .,4 weeks at 30-39ºF, then back to 68ºF. Plants look like small grass blades when small. |
| Smilacina racemosa - Sow out side in a sheltered location for germination next year and the year after. |
| Solanum hendersonii 'New Patterson' - Germination in less than two weeks at 68ºF, |
| Solanum integrifolium - Germination in less than two weeks at 68ºF, |
| Solanum melongena 'rosita' - Germination in less than two weeks at 73ºF, |
| Solanum sp - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Solenostemon scutellarioides - Germination in less than two weeks at 75ºF . Surface sow seeds, light needed for best results., |
| Solidago altissima - Germination in less than two weeks at 50ºF, |
| Solidago canadensis - Germination in less than two weeks at 50ºF, |
| Solidago 'Golden Baby' - Surface sow seeds- they are small, use 70F. Germination in 1 to 2 weeks. |
| Solidago graminifolia - Germination in less than two weeks at 50ºF, |
| Solidago juncea - Germination in less than two weeks at 50ºF, |
| Solidago multiradiata - Germination in less than two weeks at 68ºF, |
| Solidago nemoralis - Germination in less than two weeks at 50ºF, |
| Solidago pinetorum - Germination in less than two weeks at 50ºF, |
| Solidago sempervirens - Germination in less than two weeks at 50ºF, |
| Solidago speciosa - Germination in less than two weeks at 50ºF, |
| Solidago sphacelata - Germination in less than two weeks at 50ºF, |
| Sorbaria sorbifolia - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Sorbus americana - Sow outdoors in the fall for spring germ. |
| Sorbus aucuparia - 12-16 weeks at 39ºF, move to 68ºF for germ. |
| Sorghastrum nutans - Germination in less than two weeks at 68ºF, |
| Spergula pilifera (Sagina) - Use 55-60ºF, germination should occure in 10-20 days, if not then put in fridge for four weeks. |
| Spodiopogon sibiricus - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Sporobolis heterolepsis - - Germination takes longer than 2 weeks at 68ºF, slow germ., 60 days |
| Stachys lanata - Germination starts in less than two weeks at 68ºF . And may be spread out over a few weeks. Surface sow seeds, light needed for best results., |
| Stachys lanata (S. byzantina) - Very lightly cover seeds and use 66-70ºF, germination is slow and will take place over many weeks. |
| Stachys tenuifolia - Very lightly cover seeds and use 66-70ºF, germination is slow and will take place over many weeks. If no germintion use 5 weeks at 32-39F. |
| Stipa grandis - Sow at 24-39ºF for 12 weeks, move to 68-72ºF days and 55-60ºF nights for germination. Or sow and keep outside in the fall for germination in mid spring. |
| Stokesia laevis - Germination takes longer than 2 weeks at 68ºF, slow germ. |
| Stokesia laevis 'Blue' - Lightly cover seeds and use 65F, if no germination after five weks move to 35f for 4 weeks then back to 65F. Germination of this species is spread out over a few months. |
| Strelitzia reginae - Scrach seeds with a nail making an "X" and soak in warm water for two days. Sow seeds with the "X" facing upward. Cover seeds and keep soil most and use 72F. Germination starts in 4 weeks and lasts for a few months. |
| Swiss Chard - 'Bright Lights' - Cover seeds lightly and use 65-75ºF, germination in 5-10 days. |
| Symphyandra hoffmanii - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Symphyandra pendula - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |
| Symphyandra zanzegar - Germination in less than two weeks at 68ºF . Surface sow seeds, light needed for best results., |