Deno’s Garden

Capnoides sempervirens

Genus Capnoides

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around August 27, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 26, 2026.

  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. Then 42 days to germinate.

20% germination in 21–42 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Corydalis p. 26Public domain
Show the original text
Corydalis (Fumariaceae). C. sempervirens germ. 70L(1/9 in 2nd w), 70D(0/8), and 40-70D(2/10 in 2-8 d). Seeds DS 6 m germ. 70D(20% in 3-6 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Corydalis p. 26. 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 September 29, 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

about 6 months from start to sowing. Then 8 days to germinate.

20% germination in 2–8 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Corydalis p. 26Public domain
Show the original text
Corydalis (Fumariaceae). C. sempervirens germ. 70L(1/9 in 2nd w), 70D(0/8), and 40-70D(2/10 in 2-8 d). Seeds DS 6 m germ. 70D(20% in 3-6 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Corydalis p. 26. 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 High Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 14 days to germinate.

11% germination in 14 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Corydalis p. 26Public domain
Show the original text
Corydalis (Fumariaceae). C. sempervirens germ. 70L(1/9 in 2nd w), 70D(0/8), and 40-70D(2/10 in 2-8 d). Seeds DS 6 m germ. 70D(20% in 3-6 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Corydalis p. 26. 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 4

DerivedN. C. Deno, 1998

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing.

0% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Corydalis p. 26Public domain
Show the original text
Corydalis (Fumariaceae). C. sempervirens germ. 70L(1/9 in 2nd w), 70D(0/8), and 40-70D(2/10 in 2-8 d). Seeds DS 6 m germ. 70D(20% in 3-6 w). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Corydalis p. 26. 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.