Deno’s Garden

Jamesia americana

Genus Jamesia

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 21 days to germinate.

67% germination in 7–21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Jamesia p. 51Public domain
Show the original text
Jamesia (Saxifragaceae). J. americana germ. 70L(67% in 1-3 w), 70 GA-3(32% in 2nd w), and 70D(none) confirming a report (JH) that light is required
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Jamesia p. 51. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 14 days to germinate.

32% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Jamesia p. 51Public domain
Show the original text
Jamesia (Saxifragaceae). J. americana germ. 70L(67% in 1-3 w), 70 GA-3(32% in 2nd w), and 70D(none) confirming a report (JH) that light is required
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Jamesia p. 51. 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.