Deno’s Garden

Prunella vulgaris

Genus Prunella

This source reports 7 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low 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: light

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

100% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around September 29, 2026 for a May 3 last frost.

  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. Then 8 days to germinate.

53% germination in 3–8 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Sow around October 2026 — a date the source gives, not one counted back from a May 3 last frost.

  1. Sow outdoors and leave it

    Sown outdoors in October; up in November.

No stated waiting before sowing. Then 30 days to germinate.

40% germination in 30 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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, 1996

Difficulty High Rated by us, not by the source.

Start around July 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 4, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 9 months from start to sowing. Then 5 days to germinate.

38% germination in 5 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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 5

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

Start around September 30, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 29, 2025.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 1.5 years from start to sowing. Then 8 days to germinate.

20% germination in 4–8 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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 6

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

Start around March 29, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 28, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: light

about 12 months from start to sowing. Then 8 days to germinate.

15% germination in 8 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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 7

DerivedN. C. Deno, 1996

Difficulty Very high Rated by us, not by the source.

Start around March 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 15, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 12 months from start to sowing. Germination time not stated; 21 days assumed.

3% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Prunella p. 68Public domain
Show the original text
Prunella (Lamiaceae). P. vulgaris germ. 70L(100% in 2nd w), OT(40% in Nov. from seeds placed outdoors in Oct. and 20% in April), 40-70D(53% in 3-8 d) 70D- 40-70D(38% on 5th d), and 70 GA-3(none). This is an unusual pattern with the blocking system being destroyed by either light or a period at 40. DS also destroys the blocking system, and seeds DS 6 m germ. 27% in 1-11 w in 70D. Seeds are also dying at a moderate rate in DS so that seeds DS 1 y germ. 70D(3%), 70L(15% on 8th d), and 40-70D(20% in 4-8 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Prunella p. 68. 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.