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Prometheum pilosum

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Family CrassulaceaeGenus Prometheum

Rosettes of small fat green leaves packed against rock, sending up two heads of pale pink star flowers on red stems.
The whole plantGhislain118 (AD) 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.

Habit
succulent biennialPlants of the World Online
Flower
Pale pinkRead from the photograph on this page
Native range
Iran, North Caucasus, Transcaucasus, TürkiyeGBIF 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, 1996

Difficulty Moderate Rated by us, not by the source.

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 18 days to germinate.

34% germination in 5–18 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Sedum p. 77Public domain
Show the original text
Sedum (Crassulaceae). S. pilosum germ. 70L(34% in 5-18 d), 70 GA-3(15% in 2nd w), and 70D(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Sedum p. 77. 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, 1996

Difficulty High Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 14 days to germinate.

15% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Sedum p. 77Public domain
Show the original text
Sedum (Crassulaceae). S. pilosum germ. 70L(34% in 5-18 d), 70 GA-3(15% in 2nd w), and 70D(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Sedum p. 77. 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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