Deno’s Garden

Asperula arvensis

Genus Asperula

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 September 3, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 2, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 35 days to germinate.

91% germination in 14–35 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. arvensis germ. 40(3/4 in 3rd w) and 70-40(10/11 in 2-5 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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 March 15, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 21 days to germinate.

75% germination in 21 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. arvensis germ. 40(3/4 in 3rd w) and 70-40(10/11 in 2-5 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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.