Deno’s Garden

Draperia systyla

Genus Draperia

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around May 15, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on May 14, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    30 germinated in this phase.

Steps after step 3 run on after germination.

about 9 months from start to sowing. Then 56 days to germinate.

70% germination in 35–56 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Draperia p. 39Public domain
Show the original text
Draperia (Hydrophyilaceae). D. systyla seeds DS 6 m germ. 70 GA-3(70% in 5-8 w)-40(30% in 5-11 w) and none in 70D or 40 confirming AB's report. Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Draperia p. 39. 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

  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, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Draperia p. 39Public domain
Show the original text
Draperia (Hydrophyilaceae). D. systyla seeds DS 6 m germ. 70 GA-3(70% in 5-8 w)-40(30% in 5-11 w) and none in 70D or 40 confirming AB's report. Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Draperia p. 39. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.