Deno’s Garden

Trillium albidum

Genus Trillium

Protocol

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to sowing. Then 3 days to germinate.

100% germination in 3 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trillium p. 223Public domain
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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. albidum germ. 40-70(100% largely on the 3rd d). The seedlings require about a month at 70 to complete development of the radicle and tuber after which they are shifted to 40. After 1-2 m at 40 the cotyledon begins to draw out of the seed coat. It is best to keep the seedlings an additional month or two at 40 before shifting to 70. On shifting to 70 development of the cotyledon is completed in a week or so. All other procedures either fail to give any germination or the seedlings are weak and never fully develop the cotyledon.
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.