Deno’s Garden

Stachyurus chinensis

Genus Stachyurus

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around October 20, 2026 for a May 3 last frost.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: light

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: light

    32 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 77 days to germinate.

41% germination in 35–77 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Stachyurus p. 63Public domain
Show the original text
Stachyurus (Stachyuraceae). S. chinensis data is now more complete. Seeds germ. 70L(41% in 5-11 w)-40-70L(32% in 2-7 w), 70 GA-3(36% in 4-7 w), and 70D-40-70D(none). This last sample was kept for 2 y in alternating 3 m dark cycles. In the next two cycles in 70D 20% germ., but the light effect was still strong since when this sample was then shifted to 70L, 20% more germ. in 3rd w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Stachyurus p. 63. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around February 15, 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 49 days to germinate.

36% germination in 28–49 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Stachyurus p. 63Public domain
Show the original text
Stachyurus (Stachyuraceae). S. chinensis data is now more complete. Seeds germ. 70L(41% in 5-11 w)-40-70L(32% in 2-7 w), 70 GA-3(36% in 4-7 w), and 70D-40-70D(none). This last sample was kept for 2 y in alternating 3 m dark cycles. In the next two cycles in 70D 20% germ., but the light effect was still strong since when this sample was then shifted to 70L, 20% more germ. in 3rd w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Stachyurus p. 63. 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.