Deno’s Garden

Campanula latifolia

Genus Campanula

Two sources report two treatments between them. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

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 Light: dark

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

95% germination in 5–12 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Campanula p. 21Public domain
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Campanula (Campanulaceae). C. latifolia germ. 70D(95% in 5-12 d). Neither light nor a prior 3 m at 40 had much effect. Seeds DS 1 y were dead. C. latifolia alba gave only a single germination in a sample of.100 seeds even though the seeds appeared to be normal in size and shape and were collected at the same time as C. latifolia. - , C. -pyramidalis germ. 100% in 70D if fresh (2nd Ed.). Seeds DS 5 y were dead. Unfortunately the seeds were not tested at intermediate DS times.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Campanula p. 21. 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, 1996

Difficulty Very high Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 14 days to germinate.

3% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Campanula p. 28Public domain
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Campanula (Campanulaceae). C. latifolia germ. 95% in 5-11 d in either 70D or 70L, and C. latifolia alba germ. 70D(1/36 in 2nd w).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Campanula p. 28. 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.