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Coprosma rhamnoides

Twiggy Coprosma

Family RubiaceaeGenus Coprosma

A thicket of interlacing gray twigs and small round leaves carrying dark red berries
FruitRudolph89CC0

About the plant

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

Habit
shrubPlants of the World Online
Native range
New Zealand North, 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.

Worth knowing

  • Twiggy coprosma is a small shrub found only in New Zealand, with tiny, variable leaves. Its inconspicuous flowers are either male or female and are thought to be pollinated by the wind. Wikipedia: Coprosma rhamnoides

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

    1/3 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

about 12 months from start to step 5. Germination happens during step 5, in 14 days.

67% germination in 14 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. rhamnoides germ. 70D-40-70D(1/3 on 4th d)-40-70D(2/3 in 2nd w).
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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