Deno’s Garden

Begonia grandis

Genus Begonia

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around March 24, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 12 days to germinate.

95% germination in 10–12 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Begonia p. 106Public domain
Show the original text
Begonia (Begoniaceae). All three species studied were D-70. B. evansiana germ. 70(95% in 10-12 d) and 40-70(95% in 10-15 d). This is the one hardy member of an otherwise tropical genus.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Begonia p. 106. 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 Moderate Rated by us, not by the source.

Start around September 22, 2026 for a May 3 last frost.

  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. Then 15 days to germinate.

95% germination in 10–15 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Begonia p. 106Public domain
Show the original text
Begonia (Begoniaceae). All three species studied were D-70. B. evansiana germ. 70(95% in 10-12 d) and 40-70(95% in 10-15 d). This is the one hardy member of an otherwise tropical genus.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Begonia p. 106. 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.