Deno’s Garden

Lobelia sessilifolia

Genus Lobelia

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around October 1, 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 Light: light

about 6 months from start to sowing. Then 6 days to germinate.

63% germination in 2–6 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lobelia p. 172Public domain
Show the original text
Lobelia (Lobeliaceae). Both L. sessilifolia germ. 70L(24% in 2nd w)-40-70L(16%), 70D GA-3(58% in 3-5 w), 70D-40-70D(44% in 4th w), 700-40-70L(63% in 2-6 d), and 40-70-40(none). The results show some initial stimulation of germination at 70 by light, but this effect largely disappears after 70D-40 treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lobelia p. 172. 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 1, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 35 days to germinate.

58% germination in 21–35 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lobelia p. 172Public domain
Show the original text
Lobelia (Lobeliaceae). Both L. sessilifolia germ. 70L(24% in 2nd w)-40-70L(16%), 70D GA-3(58% in 3-5 w), 70D-40-70D(44% in 4th w), 700-40-70L(63% in 2-6 d), and 40-70-40(none). The results show some initial stimulation of germination at 70 by light, but this effect largely disappears after 70D-40 treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lobelia p. 172. 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 High Rated by us, not by the source.

Start around June 12, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 11, 2026.

  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 28 days to germinate.

44% germination in 28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lobelia p. 172Public domain
Show the original text
Lobelia (Lobeliaceae). Both L. sessilifolia germ. 70L(24% in 2nd w)-40-70L(16%), 70D GA-3(58% in 3-5 w), 70D-40-70D(44% in 4th w), 700-40-70L(63% in 2-6 d), and 40-70-40(none). The results show some initial stimulation of germination at 70 by light, but this effect largely disappears after 70D-40 treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lobelia p. 172. 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 4

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

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

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

    16 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 14 days to germinate.

24% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Lobelia p. 172Public domain
Show the original text
Lobelia (Lobeliaceae). Both L. sessilifolia germ. 70L(24% in 2nd w)-40-70L(16%), 70D GA-3(58% in 3-5 w), 70D-40-70D(44% in 4th w), 700-40-70L(63% in 2-6 d), and 40-70-40(none). The results show some initial stimulation of germination at 70 by light, but this effect largely disappears after 70D-40 treatment.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Lobelia p. 172. 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.