Deno’s Garden

Nepeta cataria

Genus Nepeta

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: light

about 6 months from start to sowing. Then 28 days to germinate.

40% germination in 7–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Nepeta p. 181Public domain
Show the original text
Nepeta (Lamiaceae). N. cataria required light for germination, and germination was low in all dark treatments including outdoor treatment. Germination was 70L(32-46% in 1-4 w), 40- 70L(40-65% in 1-4 w), and 40-70D(12%). for either fresh seed orseedDS 6 m at70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Nepeta p. 181. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Protocol 2

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around March 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 28 days to germinate.

32% germination in 7–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Nepeta p. 181Public domain
Show the original text
Nepeta (Lamiaceae). N. cataria required light for germination, and germination was low in all dark treatments including outdoor treatment. Germination was 70L(32-46% in 1-4 w), 40- 70L(40-65% in 1-4 w), and 40-70D(12%). for either fresh seed orseedDS 6 m at70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Nepeta p. 181. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Protocol 3

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

12% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Nepeta p. 181Public domain
Show the original text
Nepeta (Lamiaceae). N. cataria required light for germination, and germination was low in all dark treatments including outdoor treatment. Germination was 70L(32-46% in 1-4 w), 40- 70L(40-65% in 1-4 w), and 40-70D(12%). for either fresh seed orseedDS 6 m at70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Nepeta p. 181. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.