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Townsendia eximia

Genus Townsendia

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

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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  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 6 months from start to sowing. Germination 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.

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