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Glaucidium palmatum

Japanese Wood Poppy

Family RanunculaceaeGenus Glaucidium

Three pale lilac four-petalled flowers with yellow centers above large, deeply lobed and toothed leaves
The whole plantAlpsdakeCC BY-SA 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
Pale lilacRead from the photograph on this page
Native range
JapanGBIF 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.

Worth knowing

  • Japanese wood poppy, shirane-aoi in Japanese, is the only species in its genus. It grows only in northern and eastern Japan, on mountains near the Sea of Japan, with two large hand-shaped leaves, about 20 cm across, at the top of its stem. Wikipedia: Glaucidium palmatum

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 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.

100% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Glaucidium p. 149Public domain
Show the original text
Glaucidium (Ranunculaceae). G. paimatum album germ. 70 GA- 3(100% in 2nd w) and 70D(50% in 5-7 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Glaucidium p. 149. 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 February 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 49 days to germinate.

50% germination in 35–49 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Glaucidium p. 149Public domain
Show the original text
Glaucidium (Ranunculaceae). G. paimatum album germ. 70 GA- 3(100% in 2nd w) and 70D(50% in 5-7 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Glaucidium p. 149. 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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