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Lobelia boykinii

Boykin's Lobelia

Family CampanulaceaeGenus Lobelia

A thin stem held between two fingers, carrying a single small pale lilac flower
FlowerBrandon WheelerCC0

About the plant

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

Habit
helophytePlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Blue, whiteWikipedia
Native range
Native to the lower 48 statesPLANTS Database

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; PLANTS Database — USDA NRCS; Wikipedia — Wikipedia contributors.

Worth knowing

  • Boykin's lobelia is known from only about 50 occurrences, mostly in Georgia and South Carolina, and NatureServe ranks it as globally imperilled. Wikipedia: Lobelia boykinii

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 21 days to germinate.

33% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lobelia p. 54Public domain
Show the original text
Lobelia (Lobeliaceae). L. boykinii germ. 70 GA-3(33% in 3rd w), 70L(1%), 70D-40-70L(12%), and none in 40-70D or 40-70L. The 3 m at 40 appears to be fatal which is unusual.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lobelia p. 54. 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 High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 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: light

about 6 months from start to step 3. Germination happens during step 3; time not stated, 21 days assumed.

12% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lobelia p. 54Public domain
Show the original text
Lobelia (Lobeliaceae). L. boykinii germ. 70 GA-3(33% in 3rd w), 70L(1%), 70D-40-70L(12%), and none in 40-70D or 40-70L. The 3 m at 40 appears to be fatal which is unusual.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lobelia p. 54. 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, 1996

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

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Germination time not stated; 21 days assumed.

1% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lobelia p. 54Public domain
Show the original text
Lobelia (Lobeliaceae). L. boykinii germ. 70 GA-3(33% in 3rd w), 70L(1%), 70D-40-70L(12%), and none in 40-70D or 40-70L. The 3 m at 40 appears to be fatal which is unusual.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lobelia p. 54. 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, 1996

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1.

0% germination.

Nothing germinated at 40.

This source doesn't state how long step 1 lasts.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Lobelia p. 54Public domain
Show the original text
Lobelia (Lobeliaceae). L. boykinii germ. 70 GA-3(33% in 3rd w), 70L(1%), 70D-40-70L(12%), and none in 40-70D or 40-70L. The 3 m at 40 appears to be fatal which is unusual.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Lobelia p. 54. Quoted exactly. Every value on this card comes from this record; 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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