Deno’s Garden

Calycocarpum lyonii

Genus Calycocarpum

Two sources report three treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

about 9 months from start to sowing. Then 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Calycocarpum p. 21Public domain
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Calycocarpum (Menispermaceae). C. lyoni data is now more complete. Seeds germ. 40-70D-40(2/2 in 3rd w), 70D-40-70D-40-70D(4/7 in 3rd w). Germination was counted when the radicle began to develop. The seeds expand and split earljer. The radicle takes about a month to develop to a length of 2 cm. after which it is another month before a shoot and leaves start to develop. Light or GA-3 did not initiate germination.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Calycocarpum p. 21. 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 December 21, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 20, 2025.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  3. Warm moist stratification

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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  5. Warm moist stratification

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

about 15 months from start to sowing. Then 21 days to germinate.

57% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Calycocarpum p. 21Public domain
Show the original text
Calycocarpum (Menispermaceae). C. lyoni data is now more complete. Seeds germ. 40-70D-40(2/2 in 3rd w), 70D-40-70D-40-70D(4/7 in 3rd w). Germination was counted when the radicle began to develop. The seeds expand and split earljer. The radicle takes about a month to develop to a length of 2 cm. after which it is another month before a shoot and leaves start to develop. Light or GA-3 did not initiate germination.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Calycocarpum p. 21. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 9 months from start to sowing. Then 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Calycocarpum p. 27Public domain
Show the original text
Calycocarpum (Menispermaceae). C. lyoni germ. 40-70D-40(2/2 in 3rd w). None has germ. as yet in 70D-40-70D, 70L-40-70D, or 70 GA-3.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Calycocarpum p. 27. 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.