Deno’s Garden

Physaria newberryi

Genus Physaria

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 March 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 28 days to germinate.

50% germination in 7–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Physaria p. 193Public domain
Show the original text
Physaria (Brassicaceae). P. newberryi germ. 70(50% in 1-4 w) in either 70D or 70L and 40(40% in 4-11 w)-70(47% in 2-5 d)..
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Physaria p. 193. 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 October 2, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    40 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 5 days to germinate.

47% germination in 2–5 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Physaria p. 193Public domain
Show the original text
Physaria (Brassicaceae). P. newberryi germ. 70(50% in 1-4 w) in either 70D or 70L and 40(40% in 4-11 w)-70(47% in 2-5 d)..
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Physaria p. 193. 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.