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Erigeron flettii

Flett's Fleabane · Olympic Daisy · Olympic Fleabane

Family AsteraceaeGenus Erigeron

A lilac daisy with a green-gold center on a single stalk above a leafy rosette, in a rock garden
FlowerKENPEICC BY-SA 3.0

About the plant

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

Habit
Perennial, Forb/herbPLANTS Database
Flower
WhiteFlora of North America
Native range
WashingtonGBIF 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

  • Flett's fleabane, or Olympic Mountains fleabane, is a rare daisy endemic to Washington's Olympic Peninsula, and many of its populations lie inside Olympic National Park. Wikipedia: Erigeron flettii

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 February 15, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 49 days.

100% germination in 49 days.

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. flettii germ. 70D(100% in 5-7 d) and 40(100% in 7th w).
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 Low Rated by us, not by the source.

Start around March 29, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 7 days to germinate.

100% germination in 5–7 days.

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. flettii germ. 70D(100% in 5-7 d) and 40(100% in 7th w).
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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