| Nemesia strumosa - Germination in less than two weeks at 65-75ºF in dark, |
| Nemophilia menziesii - Germination in less than two weeks at 65-75ºF, |
| Nepeta cataria - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta clarkei - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta dirphya - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta mussinii - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta nervosa 'Blue Carpet' - Cover seeds, darkness needed for best germination. Use 70ºF, 10-20 days. |
| Nepeta nuda - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta subsessilis - Cover seeds, darkness needed for best germination. Use 70ºF, 10-20 days. If no germination, move to the fridge for 6 weeks. |
| Nepeta subsessilis - 8 weeks at 39ºF, move to 65-75ºF for germination. |
| Nepeta teydea - Germination in less than two weeks at 65-75ºF in dark, |
| Nepeta x faassenii 'Alba' - Cover seeds, darkness needed for best germination. Use 70ºF, 10-20 days. |
| Nepeta x faassenii 'Fat Cat Select' - Cover seeds, darkness needed for best germination. Use 70ºF, 10-20 days. |
| Nerium oleander - Germination in less than two weeks at 75ºF, |
| Nicandra physalodes - Germination in less than two weeks at 65-75ºF, |
| Nicotiana alata - Germination in less than two weeks at 73ºF . Surface sow seeds, light needed for best results., |
| Nigella damascena - sow outdoors, Germination in less than two weeks at 65-75ºF, |
| Nolana paradoxa - Germination in less than two weeks at 65-75ºF, |