Deno’s Garden

Plocama calabrica

Genus Plocama

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around January 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 4, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

about 15 months from start to sowing. Then 6 days to germinate.

88% germination in 3–6 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Putoria p. 57Public domain
Show the original text
Putoria (Rubiaceae). P. calabrica germ. 70D-40-70D(2/16 on 5th d) with the rest rotting and 70L-40-70D-40-70D(7/8 in 3-6 d). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Putoria p. 57. 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 July 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 4, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 9 months from start to sowing. Then 5 days to germinate.

12% germination in 5 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Putoria p. 57Public domain
Show the original text
Putoria (Rubiaceae). P. calabrica germ. 70D-40-70D(2/16 on 5th d) with the rest rotting and 70L-40-70D-40-70D(7/8 in 3-6 d). Seeds DS 1 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Putoria p. 57. 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.