Deno’s Garden

Arctostaphylos patula

Genus Arctostaphylos

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty High 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. Gibberellic acid soak

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    4 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    9 germinated in this phase.

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

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

13% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Arctostaphylos p. 21Public domain
Show the original text
Arctostaphylos (Ericaceae). Studies on A. patula germ. 70 GA-3(4%)-40(9%)-70(13%) and none in 70-40-70-40-70.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Arctostaphylos 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, 1996

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Arctostaphylos p. 21Public domain
Show the original text
Arctostaphylos (Ericaceae). Studies on A. patula germ. 70 GA-3(4%)-40(9%)-70(13%) and none in 70-40-70-40-70.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Arctostaphylos p. 21. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.