Deno’s Garden

Spiraea alba

Genus Spiraea

Protocol

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

100% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Spiraea p. 217Public domain
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Spiraea (Rosaceae). Some required light. S. alba germ. 70D(100% in 2nd w) and 40-70(100%) using seed DS •6 m at 70. Fresh seed germ. 70-40-70(a few) and 40-70(100%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Spiraea p. 217. 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.