Deno’s Garden

Campanula grandis

Genus Campanula

Protocol

DerivedN. C. Deno, 1993

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

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    1 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 70 days to germinate.

3% germination in 70 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Campanula p. 110Public domain
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Campanula (Campanulaceae). Most species are D-70 germinators. There are some that are 40-70 germinators and photorequirers and C. latiloba germ. 40(3% in 10th w)-70(1%) and 70-40(none). The seeds had been IDS for several years and were largely dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Campanula p. 110. 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.