Deno’s Garden

Astragalus whitneyi

Genus Astragalus

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around February 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 42 days to germinate.

83% germination in 7–42 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Astragalus p. 105Public domain
Show the original text
Astragalus (Fabaceae). It is probable that impervious seed coats are generally present and immediate germination is best achieved by making a hole in the seed coat. However, some germination was achieved in early work without any treatment. A. sp. Alps, A. sp. Colorado, A. sp. Utah, and A. sp. Wyoming germ. some in 2-6 w at 70 and A. whitneyi germ. 70(83% in 1-6 w) and 40(65% in 3-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Astragalus p. 105. 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 Moderate Rated by us, not by the source.

Start around February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 56 days to germinate.

65% germination in 21–56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Astragalus p. 105Public domain
Show the original text
Astragalus (Fabaceae). It is probable that impervious seed coats are generally present and immediate germination is best achieved by making a hole in the seed coat. However, some germination was achieved in early work without any treatment. A. sp. Alps, A. sp. Colorado, A. sp. Utah, and A. sp. Wyoming germ. some in 2-6 w at 70 and A. whitneyi germ. 70(83% in 1-6 w) and 40(65% in 3-8 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Astragalus p. 105. 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.