Deno’s Garden

Dracocephalum renati

Genus Dracocephalum

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around March 27, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 9 days to germinate.

84% germination in 5–9 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dracocephalum p. 136Public domain
Show the original text
Dracocephalum (Lamiaceae). D. renati germ. 70L(84% in 5-9 d), 70D(63% in 6-14 d), 40(21% in 7th w)-70(28% in 1-3 w), and 62% in April in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dracocephalum p. 136. 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 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 14 days to germinate.

63% germination in 6–14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dracocephalum p. 136Public domain
Show the original text
Dracocephalum (Lamiaceae). D. renati germ. 70L(84% in 5-9 d), 70D(63% in 6-14 d), 40(21% in 7th w)-70(28% in 1-3 w), and 62% in April in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dracocephalum p. 136. 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 Moderate Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

62% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dracocephalum p. 136Public domain
Show the original text
Dracocephalum (Lamiaceae). D. renati germ. 70L(84% in 5-9 d), 70D(63% in 6-14 d), 40(21% in 7th w)-70(28% in 1-3 w), and 62% in April in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dracocephalum p. 136. 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 4

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

    21 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 21 days to germinate.

28% germination in 7–21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dracocephalum p. 136Public domain
Show the original text
Dracocephalum (Lamiaceae). D. renati germ. 70L(84% in 5-9 d), 70D(63% in 6-14 d), 40(21% in 7th w)-70(28% in 1-3 w), and 62% in April in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dracocephalum p. 136. 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.