Deno’s Garden

Arctostaphylos nevadensis

Genus Arctostaphylos

Protocol

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    2/10 germinated in this phase.

Steps after step 3 run on after germination.

about 9 months from start to sowing. Germination time not stated; 21 days assumed.

30% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Arctostaphylos p. 99Public domain
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Arctostaphylos (Erlcaceae). Wild collected seeds of seven species were studied. The seeds vary greatly in size. Only the larger seeds ever germ., and the undersize seeds were not counted. Puncturing the seed coats had no effect so the long extended germinations do not seem to be a question of impervious seed coats despite a literature claim that A. nevadensis germ 70-40-70(3/10)-40(2/10).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Arctostaphylos p. 99. 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.