Deno’s Garden

Cedrus atlantica

Genus Cedrus

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 February 22, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

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

67% germination in 42 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Cedrus p. 114Public domain
Show the original text
Cedrus (Pinaceae). C. atlantica germ. 40(4/6 in 6th w) and 70(1/6 in 12th w). Sowing at 70 was deleterious.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Cedrus p. 114. 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 High Rated by us, not by the source.

Start around January 11, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 84 days to germinate.

17% germination in 84 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Cedrus p. 114Public domain
Show the original text
Cedrus (Pinaceae). C. atlantica germ. 40(4/6 in 6th w) and 70(1/6 in 12th w). Sowing at 70 was deleterious.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Cedrus p. 114. 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.