Deno’s Garden

Trichophorum alpinum

Genus Trichophorum

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around February 6, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 5, 2026.

  1. Dry storage

    Duration: 240 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 14 months from start to sowing. Then 4 days to germinate.

100% germination in 2–4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Trichophorum p. 82Public domain
Show the original text
Trichophorum (Cyperaceae). T. alpinum DS 8 m germ. 70L(95% in 2nd w), none in 70D or 70 GA-3, 40-70L(100% in 2-4 d), and 40-70D(9% in 1-11 d). Seeds DS 3 y germ. the same.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Trichophorum p. 82. 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 Low Rated by us, not by the source.

Start around July 26, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 25, 2026.

  1. Dry storage

    Duration: 240 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: light

about 8 months from start to sowing. Then 14 days to germinate.

95% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Trichophorum p. 82Public domain
Show the original text
Trichophorum (Cyperaceae). T. alpinum DS 8 m germ. 70L(95% in 2nd w), none in 70D or 70 GA-3, 40-70L(100% in 2-4 d), and 40-70D(9% in 1-11 d). Seeds DS 3 y germ. the same.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Trichophorum p. 82. 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, 1996

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

Start around January 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 29, 2026.

  1. Dry storage

    Duration: 240 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 14 months from start to sowing. Then 11 days to germinate.

9% germination in 1–11 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Trichophorum p. 82Public domain
Show the original text
Trichophorum (Cyperaceae). T. alpinum DS 8 m germ. 70L(95% in 2nd w), none in 70D or 70 GA-3, 40-70L(100% in 2-4 d), and 40-70D(9% in 1-11 d). Seeds DS 3 y germ. the same.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Trichophorum p. 82. 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 4

DerivedN. C. Deno, 1996

  1. Dry storage

    Duration: 240 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 8 months from start to sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Trichophorum p. 82Public domain
Show the original text
Trichophorum (Cyperaceae). T. alpinum DS 8 m germ. 70L(95% in 2nd w), none in 70D or 70 GA-3, 40-70L(100% in 2-4 d), and 40-70D(9% in 1-11 d). Seeds DS 3 y germ. the same.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Trichophorum p. 82. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.