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Clinopodium album

Thyme-leaved Calamint

Family LamiaceaeGenus Clinopodium

A leafy shrublet spilling over gray rock, its many short stems set with small white two-lipped flowers.
The whole plantKrzysztof Ziarnek, KenraizCC BY-SA 4.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
subshrubPlants of the World Online
Flower
WhiteRead from the photograph on this page
Native range
Albania, Hungary, Italy, NW. Balkan Pen.GBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Two sources report 7 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 7, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 6, 2026.

  1. Dry storage

    Duration: 180 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: light

about 9 months from start to step 3. Germination happens during step 3, in 3 days.

100% germination in 1–3 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Micromeria p. 48Public domain
Show the original text
Micromeria (Lamiaceae). Data is now more complete on the two species. M. thymifolia DS 6 m germ. 70L-40-70D(52% in 4-8 d), 70 GA-3(18% on 10th d), 40-70D(30% on 8th d), 40-70L(100% in 1-3 d), and none in 70D-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Micromeria p. 48. 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, 1998

Difficulty High Rated by us, not by the source.

Start around April 3, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 2, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

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

about 12 months from start to step 4. Germination happens during step 4, in 8 days.

52% germination in 4–8 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Micromeria p. 48Public domain
Show the original text
Micromeria (Lamiaceae). Data is now more complete on the two species. M. thymifolia DS 6 m germ. 70L-40-70D(52% in 4-8 d), 70 GA-3(18% on 10th d), 40-70D(30% on 8th d), 40-70L(100% in 1-3 d), and none in 70D-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Micromeria p. 48. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 2, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 1, 2026.

  1. Dry storage

    Duration: 180 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 9 months from start to step 3. Germination happens during step 3, in 8 days.

30% germination in 8 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Micromeria p. 48Public domain
Show the original text
Micromeria (Lamiaceae). Data is now more complete on the two species. M. thymifolia DS 6 m germ. 70L-40-70D(52% in 4-8 d), 70 GA-3(18% on 10th d), 40-70D(30% on 8th d), 40-70L(100% in 1-3 d), and none in 70D-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Micromeria p. 48. 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, 1998

Difficulty High Rated by us, not by the source.

Start around September 28, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 27, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 10 days to germinate.

18% germination in 10 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Micromeria p. 48Public domain
Show the original text
Micromeria (Lamiaceae). Data is now more complete on the two species. M. thymifolia DS 6 m germ. 70L-40-70D(52% in 4-8 d), 70 GA-3(18% on 10th d), 40-70D(30% on 8th d), 40-70L(100% in 1-3 d), and none in 70D-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Micromeria p. 48. 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, 1998

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 6 months from start to sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Micromeria p. 48Public domain
Show the original text
Micromeria (Lamiaceae). Data is now more complete on the two species. M. thymifolia DS 6 m germ. 70L-40-70D(52% in 4-8 d), 70 GA-3(18% on 10th d), 40-70D(30% on 8th d), 40-70L(100% in 1-3 d), and none in 70D-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Micromeria p. 48. Quoted exactly. Every value on this card comes from this record; 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 26, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 10 days to germinate.

18% germination in 10 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Micromeria p. 58Public domain
Show the original text
Micromeria (Lamiaceae). M. thymifolia germ. 70 GA-3(18% on 10th d) and none in 70D or 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Micromeria p. 58. 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

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Micromeria p. 58Public domain
Show the original text
Micromeria (Lamiaceae). M. thymifolia germ. 70 GA-3(18% on 10th d) and none in 70D or 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Micromeria p. 58. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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