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Cathcartia betonicifolia

Himalayan Blue Poppy

Family PapaveraceaeGenus Cathcartia

Two purple-blue papery poppies with golden centers and a hairy bud on one stem
FlowerMorten RossCC BY 4.0

About the plant

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

Habit
perennialPlants of the World Online
Flower
PurpleRead from the photograph on this page

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.

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 Light: dark

No stated waiting before sowing. Then 21 days to germinate.

70% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Meconopsis p. 177Public domain
Show the original text
Meconopsis (Papaveraceae). M. betonicifolia and the alba form germ. 70D(70% in 3rd w). Light, GA-3, or a prior 3 m at 40 had little effect M. betonicifolia pratensis germ. 70D(24% in 17-21 d): Light had no effect and GA-3 was deleterious.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Meconopsis p. 177. 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 High 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 Light: dark

No stated waiting before sowing. Then 21 days to germinate.

24% germination in 17–21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Meconopsis p. 177Public domain
Show the original text
Meconopsis (Papaveraceae). M. betonicifolia and the alba form germ. 70D(70% in 3rd w). Light, GA-3, or a prior 3 m at 40 had little effect M. betonicifolia pratensis germ. 70D(24% in 17-21 d): Light had no effect and GA-3 was deleterious.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Meconopsis p. 177. 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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