Deno’s Garden

Rupicapnos africana

Genus Rupicapnos

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

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 14–56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Rupicapnos p. 59Public domain
Show the original text
Rupicapnos (Papaveraceae). R. africana germ. 70D(1/12 in 9th w)-40, 70L(2/13 in 6-10 w)-40{3/13 in 4th w), and 70 (GA-3)-40(5/10 in 2-8 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Rupicapnos p. 59. 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, 1998

Difficulty High Rated by us, not by the source.

Start around October 27, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: light

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 70 days to germinate.

15% germination in 42–70 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Rupicapnos p. 59Public domain
Show the original text
Rupicapnos (Papaveraceae). R. africana germ. 70D(1/12 in 9th w)-40, 70L(2/13 in 6-10 w)-40{3/13 in 4th w), and 70 (GA-3)-40(5/10 in 2-8 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Rupicapnos p. 59. 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, 1998

Difficulty Very high Rated by us, not by the source.

Start around November 3, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 63 days to germinate.

8% germination in 63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Rupicapnos p. 59Public domain
Show the original text
Rupicapnos (Papaveraceae). R. africana germ. 70D(1/12 in 9th w)-40, 70L(2/13 in 6-10 w)-40{3/13 in 4th w), and 70 (GA-3)-40(5/10 in 2-8 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Rupicapnos p. 59. 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.