Deno’s Garden

Hulsea algida

Genus Hulsea

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around February 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 15, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

about 12 months from start to sowing. Then 49 days to germinate.

95% germination in 14–49 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Hulsea p. 38Public domain
Show the original text
Hulsea (Asteraceae). H. algida germ. 70D(1/13 in 5th w) and 40(6/27 in 6-8 w)-70(1/27). Seeds DS 1 y germ. 40(95% in 2-7 w) and 70D(none). •
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Hulsea p. 38. 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 High Rated by us, not by the source.

Start around November 10, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    1/27 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 56 days to germinate.

22% germination in 42–56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Hulsea p. 38Public domain
Show the original text
Hulsea (Asteraceae). H. algida germ. 70D(1/13 in 5th w) and 40(6/27 in 6-8 w)-70(1/27). Seeds DS 1 y germ. 40(95% in 2-7 w) and 70D(none). •
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Hulsea p. 38. 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 3

DerivedN. C. Deno, 1998

Difficulty Very high Rated by us, not by the source.

Start around March 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 35 days to germinate.

8% germination in 35 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Hulsea p. 38Public domain
Show the original text
Hulsea (Asteraceae). H. algida germ. 70D(1/13 in 5th w) and 40(6/27 in 6-8 w)-70(1/27). Seeds DS 1 y germ. 40(95% in 2-7 w) and 70D(none). •
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Hulsea p. 38. 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.