Deno’s Garden

Holodiscus discolor

Genus Holodiscus

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate 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

    10 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

33% germination in 4–8 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Holodiscus p. 153Public domain
Show the original text
Holodiscus (Rosaceae). H. discolor germ. 40(10% in 12th w)-70(33% in 4- 8d), 70-40 (none), and 1/17 in May in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Holodiscus p. 153. 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.

  1. Sow outdoors and leave it

    Up in May.

No stated waiting before sowing.

6% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Holodiscus p. 153Public domain
Show the original text
Holodiscus (Rosaceae). H. discolor germ. 40(10% in 12th w)-70(33% in 4- 8d), 70-40 (none), and 1/17 in May in outdoor treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Holodiscus p. 153. 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.