Deno’s Garden

Rosa virginiana

Genus Rosa

Protocol

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 9 months from start to sowing. Then 8 days to germinate.

80% germination in 2–8 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rosa p. 207Public domain
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Rosa (Rosaceae). Germination -occurs largely at 40 and extends in an erratic manner over several cycles. All seed was WC 7 d. Although the seed coat is hard, grinding a hole through it did not initiate germination. In view of the results with two of the four species, outdoor treatment should be tried on the other two. A. virginiana germ. 70D-40-70D(80% in 2-8 d). Germination was not stimulated by GA-3.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rosa p. 207. 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.