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Pulsatilla occidentalis

Mountain Pasqueflower · Western Anemone · Western Pasqueflower · White Pasqueflower

Family RanunculaceaeGenus Pulsatilla

Cream-white flowers with greenish centers and a boss of pale stamens, on hairy stems above ferny leaves, among alpine cushion plants.
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About the plant

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

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
White, soft purpleWikipedia
Native range
Canada, lower 48 statesPLANTS Database

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; PLANTS Database — USDA NRCS; Wikipedia — Wikipedia contributors.

Worth knowing

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around March 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 35 days to germinate.

100% germination in 35 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Anemone p. 13Public domain
Show the original text
Anemone (Ranunculaceae). . ' A. occidentalis germ. 70D(100% in 5th w), 70 GA-3(100% in 3rd w), 70L- 40(100% in 11th w), and 40-70D(50% in 3-8 d). Seeds DS 6 m germ. similar to fresh seeds. Seeds DS 1 y germ. 70D(10% in 6th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Anemone p. 13. 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 Low Rated by us, not by the source.

Start around March 15, 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 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Anemone p. 13Public domain
Show the original text
Anemone (Ranunculaceae). . ' A. occidentalis germ. 70D(100% in 5th w), 70 GA-3(100% in 3rd w), 70L- 40(100% in 11th w), and 40-70D(50% in 3-8 d). Seeds DS 6 m germ. similar to fresh seeds. Seeds DS 1 y germ. 70D(10% in 6th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Anemone p. 13. 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 3

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around October 21, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 20, 2026.

  1. Warm moist stratification

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

  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 77 days.

100% germination in 77 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Anemone p. 13Public domain
Show the original text
Anemone (Ranunculaceae). . ' A. occidentalis germ. 70D(100% in 5th w), 70 GA-3(100% in 3rd w), 70L- 40(100% in 11th w), and 40-70D(50% in 3-8 d). Seeds DS 6 m germ. similar to fresh seeds. Seeds DS 1 y germ. 70D(10% in 6th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Anemone p. 13. 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 4

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around December 28, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

about 3 months from start to step 2. Germination happens during step 2, in 8 days.

50% germination in 3–8 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Anemone p. 13Public domain
Show the original text
Anemone (Ranunculaceae). . ' A. occidentalis germ. 70D(100% in 5th w), 70 GA-3(100% in 3rd w), 70L- 40(100% in 11th w), and 40-70D(50% in 3-8 d). Seeds DS 6 m germ. similar to fresh seeds. Seeds DS 1 y germ. 70D(10% in 6th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Anemone p. 13. 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 5

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around February 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 22, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 12 months from start to sowing. Then 42 days to germinate.

10% germination in 42 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Anemone p. 13Public domain
Show the original text
Anemone (Ranunculaceae). . ' A. occidentalis germ. 70D(100% in 5th w), 70 GA-3(100% in 3rd w), 70L- 40(100% in 11th w), and 40-70D(50% in 3-8 d). Seeds DS 6 m germ. similar to fresh seeds. Seeds DS 1 y germ. 70D(10% in 6th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Anemone p. 13. 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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