Deno’s Garden

Melampyrum lineare

Genus Melampyrum

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

about 6 months from start to sowing. Then 56 days to germinate.

55% germination in 28–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Melampyrum p. 177Public domain
Show the original text
Melampyrum (Scrophulariaceae). M. lineare germ. 70-40(55% in 4-8 w) and 40-70(10%)-40(20%)-70. In outdoor treatment seeds started germinating in February, but they were killed by low temperatures. All DS seed .was dead. Light did not initiate germination.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Melampyrum p. 177. 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, 1993

Difficulty High Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  2. Warm moist stratification

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

    10 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C Light: either

  4. Warm moist stratification

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

Steps after step 3 run on after germination.

about 9 months from start to sowing. Germination time not stated; 21 days assumed.

20% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Melampyrum p. 177Public domain
Show the original text
Melampyrum (Scrophulariaceae). M. lineare germ. 70-40(55% in 4-8 w) and 40-70(10%)-40(20%)-70. In outdoor treatment seeds started germinating in February, but they were killed by low temperatures. All DS seed .was dead. Light did not initiate germination.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Melampyrum p. 177. 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.