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Coprosma atropurpurea

Family RubiaceaeGenus Coprosma

Many glossy dark red berries scattered through a low mat of small leaves and grass
FruitMurray DawsonCC BY 4.0

About the plant

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

Habit
subshrubPlants of the World Online
Native range
New Zealand SouthGBIF 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; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Protocol

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 6 months from start to step 3. Germination happens during step 3, in 4 days.

67% germination in 4 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Coprosma p. 26Public domain
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Coprosma (Rubiaceae). Light or GA-3 did not stimulate germination. Although the samples were very small, the consistency between afl four species makes it fairly certain that all three have a 70-40-70 germination pattern. C. atropurpurea germ. 70D-40-70D(2/3 on 4th d).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Coprosma p. 26. 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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