Deno’s Garden

Sisyrinchium campestre

Genus Sisyrinchium

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

Sow around December 2026 — a date the source gives, not one counted back from a May 3 last frost.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow outdoors and leave it

    Sown outdoors in December.

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

26% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Sisyrinchium p. 215Public domain
Show the original text
Sisyrinchium (lridaceae). Light and outdoor conditions should be tried. S. campestre placed outdoors in June (fresh seeds) germ. 10% in April and 25% the next April (22 m later). Seeds DS 6 m at 70 and placed outdoors in December germ. 26% in the April 16 m later. Other treatments including light and GA-3 gave germinations less than 0.5%.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Sisyrinchium p. 215. 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.

Sow around June 2027 — a date the source gives, not one counted back from a May 3 last frost. Too late for spring 2027 — that needed starting on June 2026.

  1. Sow outdoors and leave it

    Sown outdoors in June; up in April.

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

10% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Sisyrinchium p. 215Public domain
Show the original text
Sisyrinchium (lridaceae). Light and outdoor conditions should be tried. S. campestre placed outdoors in June (fresh seeds) germ. 10% in April and 25% the next April (22 m later). Seeds DS 6 m at 70 and placed outdoors in December germ. 26% in the April 16 m later. Other treatments including light and GA-3 gave germinations less than 0.5%.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Sisyrinchium p. 215. 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.