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Townsendia eximia

Tall Townsend Daisy · Rocky Mountain Townsend-daisy

Family AsteraceaeGenus Townsendia

A lilac daisy with many narrow rays and a domed yellow center, on a stem with narrow gray-green leaves over dry pine needles.
FlowerCraig Martin https://www.inaturalist.org/people/craigmartinCC0

About the plant

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

Flower
BlueFlora of North America

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

Source: Flora of North America — Flora of North America Editorial Committee.

Worth knowing

  • Mostly a plant of the mountains of New Mexico, reaching into far southern Colorado. It has large, showy blue-purple flowers. Wikipedia: Townsendia eximia

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.

90% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Townsendia p. 221Public domain
Show the original text
Townsendia (Asteraceae). This genus is composed entirely of 0-70 germinators. The time required for DS may be short as in T. eximia and T. eximia germ. 70(90-100% in 4-12.d) using either fresh seed or seed DS 6 m at 70 or 40. Fresh seed germ. 40(33%)-70(57%) and seed DS 6 m at 40 or 70 germ. 40000% in 3-7 w) showing the speeding up effect of DS.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Townsendia p. 221. 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

    33 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.

57% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Townsendia p. 221Public domain
Show the original text
Townsendia (Asteraceae). This genus is composed entirely of 0-70 germinators. The time required for DS may be short as in T. eximia and T. eximia germ. 70(90-100% in 4-12.d) using either fresh seed or seed DS 6 m at 70 or 40. Fresh seed germ. 40(33%)-70(57%) and seed DS 6 m at 40 or 70 germ. 40000% in 3-7 w) showing the speeding up effect of DS.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Townsendia p. 221. 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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