Deno’s Garden

Thuja occidentalis

Genus Thuja

Protocol

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Sown outdoors in September; up in April.

No stated waiting before sowing. Then 210 days to germinate.

86% germination in 210 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Thuja p. 221Public domain
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Thuja (Pinaceae). T. occidentalis germ. 100% in 12-14 d in 70L or 70D. A prior 3 m moist at 40 or treatment with GA-3 had no effect, but DS for 6 m at 70 lowered germination to 35%. Seeds placed outdoors in September germ. 86% in April.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Thuja p. 221. 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.