Deno’s Garden

Centranthus ruber

Genus Centranthus

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. Cold moist stratification

    Temperature: 40°F 4°C Light: either

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

100% germination in 28–42 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Centranthus p. 116Public domain
Show the original text
Centranthus (Valerianaceae). C. ruber germ. 70(100% on the 3rd d) and 40(100% in 4-6 w). Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Centranthus p. 116. 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 Low Rated by us, not by the source.

Start around April 2, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: either

No stated waiting before sowing. Then 3 days to germinate.

100% germination in 3 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Centranthus p. 116Public domain
Show the original text
Centranthus (Valerianaceae). C. ruber germ. 70(100% on the 3rd d) and 40(100% in 4-6 w). Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Centranthus p. 116. 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.