Nepeta grandiflora
Genus Nepeta
This source reports two treatments. Both are shown.
Protocol 1
DerivedN. C. Deno, 1998Difficulty Low Rated by us, not by the source.
Start around April 1, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 31, 2024.
- 1
Dry storage
Duration: 1095 days · Temperature: 70°F 21°C
- 2
Sow and cover
Temperature: 70°F 21°C · Light: dark
about 3 years from start to sowing. Then 5 days to germinate.
97% germination in 3–5 days.
Protocol 2
DerivedN. C. Deno, 1998Difficulty Low Rated by us, not by the source.
Start around April 1, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 31, 2024.
- 1
Dry storage
Duration: 1095 days · Temperature: 70°F 21°C
- 2
Sow and cover
Temperature: 70°F 21°C · Light: light
about 3 years from start to sowing. Then 5 days to germinate.
85% germination in 3–5 days.