Deno’s Garden

Delphinium xantholeucum

Genus Delphinium

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Very high Rated by us, not by the source.

Start around January 18, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 77 days to germinate.

4% germination in 77 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Delphinium p. 130Public domain
Show the original text
Delphinium (Ranunculaceae). . This genus is composed of a group of medium heigth monocarpic species typified by D. xantholeucum germ. 40(1/23 in 11th w) and none in 70 or outdoors.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Delphinium p. 130. 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

  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, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Delphinium p. 130Public domain
Show the original text
Delphinium (Ranunculaceae). . This genus is composed of a group of medium heigth monocarpic species typified by D. xantholeucum germ. 40(1/23 in 11th w) and none in 70 or outdoors.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Delphinium p. 130. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.