Deno’s Garden

Skimmia japonica

Genus Skimmia

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

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

  1. Clean the flesh off the seed

  2. Cold moist stratification

    Temperature: 40°F 4°C

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

28% germination in 21–56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Skimmia p. 215Public domain
Show the original text
Skimmia (Rutaceae). S. japonica collected in May and WC germ. 70(21% in 12-15 d) and 40(28% in 3-8 w). The seed that did not germinate rotted quickly suggesting internal infection. The seedlings produce only the two cotyledons in the first year.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Skimmia p. 215. 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 21, 2027 for a May 3 last frost.

  1. Clean the flesh off the seed

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 15 days to germinate.

21% germination in 12–15 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Skimmia p. 215Public domain
Show the original text
Skimmia (Rutaceae). S. japonica collected in May and WC germ. 70(21% in 12-15 d) and 40(28% in 3-8 w). The seed that did not germinate rotted quickly suggesting internal infection. The seedlings produce only the two cotyledons in the first year.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Skimmia p. 215. 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.