Deno’s Garden

Papaver lapponicum

Genus Papaver

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

22% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Papaver p. 185Public domain
Show the original text
Papaver (Papaveraceae). The DS seed of the following species germ. immediately at 70: P. lapponicum germ. 70(3%) and 40-70(22%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Papaver p. 185. 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 Very high Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Germination time not stated; 21 days assumed.

3% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Papaver p. 185Public domain
Show the original text
Papaver (Papaveraceae). The DS seed of the following species germ. immediately at 70: P. lapponicum germ. 70(3%) and 40-70(22%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Papaver p. 185. 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.