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Erigeron elegantulus

Blue Dwarf Fleabane

Family AsteraceaeGenus Erigeron

Pale lilac daisies with yellow centers on short leafy stems, beside a block of dark lava
The whole plantDean Wm. TaylorCC BY 2.0

About the plant

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

Habit
Perennial, Forb/herbPLANTS Database
Flower
Blue, pale lavender, pinkishFlora of North America
Native range
California, OregonGBIF Backbone Taxonomy

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

Sources: PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • The volcanic daisy is an uncommon fleabane of the Modoc Plateau and nearby parts of California and Oregon, growing on the region's rocky volcanic soils. Wikipedia: Erigeron elegantulus

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low 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

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

78% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Erigeron p. 139Public domain
Show the original text
Erigeron (Asteraceae). These are mainly-D-70 germinators. Germination failed in 60% of the samples received, and this is believed to be due to the absence of viable seed among the copious chaff. The following species germ. in 4-10 d at 70: E. elegantulus germ. 70(78%) and 40(36%)-70(64%). Seed DS 6 m at 70 or 40 germ. under 10% indicating that in this species DS is not tolerated welt:
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Erigeron p. 139. 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 December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    36 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

64% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Erigeron p. 139Public domain
Show the original text
Erigeron (Asteraceae). These are mainly-D-70 germinators. Germination failed in 60% of the samples received, and this is believed to be due to the absence of viable seed among the copious chaff. The following species germ. in 4-10 d at 70: E. elegantulus germ. 70(78%) and 40(36%)-70(64%). Seed DS 6 m at 70 or 40 germ. under 10% indicating that in this species DS is not tolerated welt:
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Erigeron p. 139. 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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