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Primula buryana

Everest Nodding Primrose

Family PrimulaceaeGenus Primula

White five-petalled flowers with notched petals and pink buds on slender stalks
FlowerPictured: Primula munroi, a relativenomadashCC 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
White, purpleFlora of China
Native range
Nepal, TibetGBIF 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; Flora of China — Wu Zhengyi, Peter H. Raven and Hong Deyuan (eds.); GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around March 19, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 17 days to germinate.

100% germination in 8–17 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Primula p. 197Public domain
Show the original text
Primula. (Primulaceae). The discovery of a photorequirement in P. buryana (501) showed a mild promotion of germination by light. Seed received in November from Nepal germ. 70L(100% in 8-17 d) and 70D(65% in 8-24 d). The sample in 70D did not germinate further. A prior 3m at 40 injured the seed as shown by 40-70(8%). Two collections of unidentified species from the same region germ. the same including the injurious effect of 3 m at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Primula p. 197. 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 March 12, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 24 days to germinate.

65% germination in 8–24 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Primula p. 197Public domain
Show the original text
Primula. (Primulaceae). The discovery of a photorequirement in P. buryana (501) showed a mild promotion of germination by light. Seed received in November from Nepal germ. 70L(100% in 8-17 d) and 70D(65% in 8-24 d). The sample in 70D did not germinate further. A prior 3m at 40 injured the seed as shown by 40-70(8%). Two collections of unidentified species from the same region germ. the same including the injurious effect of 3 m at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Primula p. 197. 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, 1993

Difficulty Very high Rated by us, not by the source.

Start around December 15, 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

about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

8% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Primula p. 197Public domain
Show the original text
Primula. (Primulaceae). The discovery of a photorequirement in P. buryana (501) showed a mild promotion of germination by light. Seed received in November from Nepal germ. 70L(100% in 8-17 d) and 70D(65% in 8-24 d). The sample in 70D did not germinate further. A prior 3m at 40 injured the seed as shown by 40-70(8%). Two collections of unidentified species from the same region germ. the same including the injurious effect of 3 m at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Primula p. 197. 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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