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Sideranthus coloradoensis

Colorado Tansy Aster

Family AsteraceaeGenus Sideranthus

Also published as Xanthisma coloradoense. You are in the right place.

Pale pink daisies with deep yellow centers on short stems, above a rosette of narrow gray-green toothed leaves, among gray scree.
FlowerGhislain118 http://www.fleurs-des-montagnes.netCC BY-SA 3.0

About the plant

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

Flower
Pale pinkRead from the photograph on this page
Native range
Colorado, WyomingGBIF Backbone Taxonomy

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

Sources: Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Protocol

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

  1. Dry storage

    Duration: 180 days

  2. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 14 days to germinate.

100% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Aster p. 104Public domain
Show the original text
Aster (Asteraceae). Nearly all species in this genus are D-70 germinators. The following were received as DS seed and germ. in 2-4 w at 70: A. coloradoensis germ. 70(100% in 2nd w) using seed DS 6 m at 70 or 40 and none after 5 cycles with fresh seed showing that the species is a D-70 germinator.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Aster p. 104. 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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