Mendel’s Gardens

Ramonda myconi

Pyrenean Violet · Pyrenean Ramonda

Family GesneriaceaeGenus Ramonda

Also published as Ramonda myconii. You are in the right place.

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    Deno gives no length for this period; three months is his standard cycle.

  3. Warm moist stratification

    Temperature: 70°F 21°C

about 9 months from start to sowing. Germination time not stated; 21 days assumed.

37% germination.

The best of six, and the only one where a cold period helps at all.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. 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 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. Dry storage

    Duration: 180 daysTemperature: 40°F 4°C

  2. Sow and cover

    Temperature: 70°F 21°C

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

19% germination.

Half what the cold period gives, from the same dry-stored seed.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. 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. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C

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

11% germination.

Stored at 70 rather than 40 and the seed does worse: 11% against 19%.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. 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 Very high Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Germination time not stated; 21 days assumed.

4% germination.

Fresh seed is the worst option here. Store it dry at 40 for six months first.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. 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, 1993

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    Deno gives no length for this period; three months is his standard cycle.

  2. Warm moist stratification

    Temperature: 70°F 21°C

about 3 months from start to sowing.

0% germination.

Cold first does nothing at all unless the seed was dry-stored at 40 beforehand.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 6

DerivedN. C. Deno, 1993

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    Deno gives no length for this period; three months is his standard cycle.

  3. Warm moist stratification

    Temperature: 70°F 21°C

about 9 months from start to sowing.

0% germination.

Nothing. Storage at 70 does not unlock the cold route; storage at 40 does.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, RamondaPublic domain
Show the original text
Ramonda (Gesneriaceae). R. myconi germ. best with seed DS 6 m at 40 in 40-70(37%) and less in 70(19%). Other seed germ. less as shown by 70(4%) and 40-70(none) for fresh seed and 70(11%) and 40-70(none) for seed DS 6 m at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Ramonda. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.