Deno’s Garden

Argemone hispida

Genus Argemone

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 March 15, 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 21 days to germinate.

50% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Argemone p. 22Public domain
Show the original text
Argemone (Papaveraceae). A. hispida germ. 40(30% in 11th w)-70D(10%), 70 GA-3(50% in 3rd w), and 70D-40-70D(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Argemone p. 22. 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 Moderate Rated by us, not by the source.

Start around October 20, 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 Light: dark

    10 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 77 days to germinate.

30% germination in 77 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Argemone p. 22Public domain
Show the original text
Argemone (Papaveraceae). A. hispida germ. 40(30% in 11th w)-70D(10%), 70 GA-3(50% in 3rd w), and 70D-40-70D(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Argemone p. 22. 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.