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Phyllodoce nipponica

Japanese Mountain Heather

Family EricaceaeGenus Phyllodoce

White bell flowers with pink-tinged buds, nodding from wiry stems over a mat of short green needles on lichened rock.
FlowerQwert1234CC BY-SA 3.0

About the plant

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

Habit
subshrubPlants of the World Online
Flower
WhiteRead 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.

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 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 28 days to germinate.

90% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Phyllodoce p. 192Public domain
Show the original text
Phyllodoce (Ericaceae). P. nipponica seeds received in January required light at 70, but this was removed by a preliminary 3 m at 40. The data are 70L(90% in 2-4 w), 70D(none), 40- 70D(90% in 2-4 w), and 40-70L(90% in 2-4 w). A prior 4 w in 70D had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Phyllodoce p. 192. 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 December 8, 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 28 days.

90% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Phyllodoce p. 192Public domain
Show the original text
Phyllodoce (Ericaceae). P. nipponica seeds received in January required light at 70, but this was removed by a preliminary 3 m at 40. The data are 70L(90% in 2-4 w), 70D(none), 40- 70D(90% in 2-4 w), and 40-70L(90% in 2-4 w). A prior 4 w in 70D had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Phyllodoce p. 192. 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 Moderate Rated by us, not by the source.

Start around December 8, 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: light

about 3 months from start to step 2. Germination happens during step 2, in 28 days.

90% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Phyllodoce p. 192Public domain
Show the original text
Phyllodoce (Ericaceae). P. nipponica seeds received in January required light at 70, but this was removed by a preliminary 3 m at 40. The data are 70L(90% in 2-4 w), 70D(none), 40- 70D(90% in 2-4 w), and 40-70L(90% in 2-4 w). A prior 4 w in 70D had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Phyllodoce p. 192. 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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