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Collomia biflora

Scarlet Collomia

Family PolemoniaceaeGenus Collomia

Small magenta-pink flowers with five pointed lobes and yellow-green eyes, on hairy stems with narrow pale leaves.
FlowerDinkumCC BY-SA 3.0

About the plant

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

Habit
annualPlants of the World Online
Flower
RedRead from the photograph on this page
Native range
Argentina Northwest, Argentina South, Bolivia, Chile Central, Chile SouthGBIF Backbone Taxonomy

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

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around March 18, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 18 days.

100% germination in 18 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Collomia p. 25Public domain
Show the original text
Collomia (Polemoniaceae). C. cavanillesii (JS) germ. 40(6/6 in 18 d) and 70D-40(7/8 in 18 d). This is somewhat similar to the pattern found for
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Collomia p. 25. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around December 18, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 3 months from start to step 2. Germination happens during step 2, in 18 days.

88% germination in 18 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Collomia p. 25Public domain
Show the original text
Collomia (Polemoniaceae). C. cavanillesii (JS) germ. 40(6/6 in 18 d) and 70D-40(7/8 in 18 d). This is somewhat similar to the pattern found for
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Collomia p. 25. 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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