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Alchemilla alpina

Genus Alchemilla

A dense mat of small fan-shaped leaves cut into narrow silver-edged fingers, with sprays of tiny yellow-green flowers
The whole plantS. Rae from Scotland, UKCC BY 2.0

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

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. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Alternating temperatures

    Temperature: 40–70°F 4–21°C

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

36% germination in 28 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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 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. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Alternating temperatures

    Temperature: 40–70°F 4–21°C

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

15% germination in 21 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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 High Rated by us, not by the source.

Start around June 12, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 11, 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 28 days to germinate.

15% germination in 28 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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 April 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 4, 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

  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 sowing. Then 6 days to germinate.

10% germination in 6 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Gibberellic acid soak

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

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

10% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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 Very high Rated by us, not by the source.

  1. Sow outdoors and leave it

    Nothing germinated outdoors.

No stated waiting before sowing.

0% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Alchemilla p. 17Public domain
Show the original text
Alchemilla (Rosaceae). In retrospect it is likely that OS may be the best treatment for the five species studied atthough, unfortunately, OS was not trled initiallly on any of the five. In the 2nd Ed. A. alpina germ. 70D-40-OS(36% in 4th w), 70L-40-OS(15% in 3rd w), 70D-40- 70D(15% in 4th w), 70 GA-3-40(10%), 40-70D-40-70D(10% on 6th d), and none in OT after one y.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Alchemilla p. 17. 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.

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

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