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Lobelia sessilifolia

Sessile Lobelia

Family CampanulaceaeGenus Lobelia

Two upright spikes of violet-blue two-lipped flowers above narrow leaves in a wet meadow
FlowerQwert1234CC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
perennialPlants of the World Online
Flower
Blue-purple, violetFlora of China
Native range
Amur, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia and elsewhereGBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Flora of China — Wu Zhengyi, Peter H. Raven and Hong Deyuan (eds.); GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

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 December 30, 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 3 months from start to step 2. Germination happens during step 2, in 6 days.

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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 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 6 months from start to step 3. Germination happens during step 3, in 28 days.

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 March 22, 2027 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.

Germination happens during step 1, in 14 days.

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.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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