Deno’s Garden

Gentiana calycosa

Genus Gentiana

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty 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.

20% germination in 21–35 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gentiana p. 45Public domain
Show the original text
Gentiana (Gentianaceae). !s st'mulat.on by GA-3, light, and oscillating T, but there is ^i ls anifican germination in70D. About half the seeds died afte'r 1 y G. calycosa seeds were all dead after 1 y DS 4 0 - 7 0 ^^ - 3rd w), and 70D %). (2 1y^ere dea^ ISe ^ ^" A S m a" ™ '10%> - OT Seeds DS liahtorGA^hSLS!«°n? ?erm. 70D(20% in 3-5 w) and 40-70D(20%) with r tl 9 effeCt" Th,s 18 'nconS'stent with results from the earlier sam^e a rth 1 germination^ ^ ^ "ght 0r G A'3 a re r 6^u i r ed f or
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gentiana p. 45. 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 High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

20% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Gentiana p. 45Public domain
Show the original text
Gentiana (Gentianaceae). !s st'mulat.on by GA-3, light, and oscillating T, but there is ^i ls anifican germination in70D. About half the seeds died afte'r 1 y G. calycosa seeds were all dead after 1 y DS 4 0 - 7 0 ^^ - 3rd w), and 70D %). (2 1y^ere dea^ ISe ^ ^" A S m a" ™ '10%> - OT Seeds DS liahtorGA^hSLS!«°n? ?erm. 70D(20% in 3-5 w) and 40-70D(20%) with r tl 9 effeCt" Th,s 18 'nconS'stent with results from the earlier sam^e a rth 1 germination^ ^ ^ "ght 0r G A'3 a re r 6^u i r ed f or
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Gentiana p. 45. 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.