Deno’s Garden

Campanula alliariifolia

Genus Campanula

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around July 5, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 4, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    2 germinated in this phase.

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 9 months from start to sowing. Then 5 days to germinate.

98% germination in 3–5 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Campanula p. 110Public domain
Show the original text
Campanula (Campanulaceae). Most species are D-70 germinators. There are some that are 40-70 germinators and photorequirers and C. alliarifolia is primarily a 40-70 germinator as shown by 40-70(70% in 3-17 d) for seed DS 6 m at 70 and 40-70(40% in 5-15 d) for fresh seed. A curious divergence appeared in the 70-40-70 treatment. Fresh seed germ. 70(2%)-40-70(98% in 3-5 d) whereas the DS seed germ. none
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.

Protocol 2

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around March 25, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 24, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 12 months from start to sowing. Then 17 days to germinate.

70% germination in 3–17 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Campanula p. 110Public domain
Show the original text
Campanula (Campanulaceae). Most species are D-70 germinators. There are some that are 40-70 germinators and photorequirers and C. alliarifolia is primarily a 40-70 germinator as shown by 40-70(70% in 3-17 d) for seed DS 6 m at 70 and 40-70(40% in 5-15 d) for fresh seed. A curious divergence appeared in the 70-40-70 treatment. Fresh seed germ. 70(2%)-40-70(98% in 3-5 d) whereas the DS seed germ. none
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.

Protocol 3

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.

40% germination in 5–15 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Campanula p. 110Public domain
Show the original text
Campanula (Campanulaceae). Most species are D-70 germinators. There are some that are 40-70 germinators and photorequirers and C. alliarifolia is primarily a 40-70 germinator as shown by 40-70(70% in 3-17 d) for seed DS 6 m at 70 and 40-70(40% in 5-15 d) for fresh seed. A curious divergence appeared in the 70-40-70 treatment. Fresh seed germ. 70(2%)-40-70(98% in 3-5 d) whereas the DS seed germ. none
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.