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Trillium ovatum

Coast Trillium · Coast Wakerobin · Pacific Trillium

Family MelanthiaceaeGenus Trillium

A white three-petalled flower with yellow stamens, held above a whorl of three broad wavy-edged leaves on mossy ground.
FlowerWalter Siegmund (talk)CC BY-SA 3.0

About the plant

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

Habit
rhizomatous geophytePlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
WhiteFlora of North America
Native range
British Columbia, California, Oregon, WashingtonGBIF 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; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around February 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 56 days to germinate.

44% germination in 14–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trillium p. 223Public domain
Show the original text
Trillium (Llliaceae). Gibberelins are at least desirable if not requisite for both germination and the production of healthy seedlings. More work is necessary before an optimum procedure can be recommended. The GA-3 treatment was tried with fresh seeds of T. ovatum germ. 70D(4/9 in 2-8 w) and 40(1/8)-70-40-70. The seeds were received in moist towels and one had already germ. at 70. The seeds started at 40 were treated with GA-3 after a y of alternating cycles whereupon 6/7 germ. in 4-8 w.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Trillium p. 223. 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 High Rated by us, not by the source.

Start around March 15, 2027 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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

12% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trillium p. 223Public domain
Show the original text
Trillium (Llliaceae). Gibberelins are at least desirable if not requisite for both germination and the production of healthy seedlings. More work is necessary before an optimum procedure can be recommended. The GA-3 treatment was tried with fresh seeds of T. ovatum germ. 70D(4/9 in 2-8 w) and 40(1/8)-70-40-70. The seeds were received in moist towels and one had already germ. at 70. The seeds started at 40 were treated with GA-3 after a y of alternating cycles whereupon 6/7 germ. in 4-8 w.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Trillium p. 223. 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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