Deno’s Garden

Argemone pleiacantha

Genus Argemone

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

80% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Argemone p. 100Public domain
Show the original text
Argemone (Papaveraceae). A. pleicantha germ. 40(8% in 7th w)-70(2%), 70-40(none), and 80% in April in outdoor treatment. This shows that the oscillating temperatures of outdoor treatment are required for germination.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Argemone p. 100. 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 Very high Rated by us, not by the source.

Start around November 17, 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

    2 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 49 days to germinate.

8% germination in 49 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Argemone p. 100Public domain
Show the original text
Argemone (Papaveraceae). A. pleicantha germ. 40(8% in 7th w)-70(2%), 70-40(none), and 80% in April in outdoor treatment. This shows that the oscillating temperatures of outdoor treatment are required for germination.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Argemone p. 100. 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.