Deno’s Garden

Tulipa turkestanica

Genus Tulipa

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 56 days to germinate.

50% germination in 21–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Tulipa p. 226Public domain
Show the original text
Tulipa (Llllaceae). Germination takes place either at 40 or after a 3 m period at 40: Preliminary results indicate that the seedlings must grow at low temperatures as a quick shift to 70 generally led to rotting starting at the tip of the radicle. Outdoor treatment needs to be tried not only for the germination but also for the cotyledon development. GA-3 probably has no effect in this genus. T. turkestanica germ. best in 70-40(50% in 3-8 w•) and 40(30%)-70(30%) using either fresh seed or seed DS 6 m at 70 or 40. When sown at 40 germination was less convenient as it extended over two cycles.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Tulipa p. 226. 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 December 15, 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

    30 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Germination time not stated; 21 days assumed.

30% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Tulipa p. 226Public domain
Show the original text
Tulipa (Llllaceae). Germination takes place either at 40 or after a 3 m period at 40: Preliminary results indicate that the seedlings must grow at low temperatures as a quick shift to 70 generally led to rotting starting at the tip of the radicle. Outdoor treatment needs to be tried not only for the germination but also for the cotyledon development. GA-3 probably has no effect in this genus. T. turkestanica germ. best in 70-40(50% in 3-8 w•) and 40(30%)-70(30%) using either fresh seed or seed DS 6 m at 70 or 40. When sown at 40 germination was less convenient as it extended over two cycles.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Tulipa p. 226. 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.