Deno’s Garden

Parrotia persica

Genus Parrotia

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around January 11, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 84 days to germinate.

90% germination in 84 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Parrotia p. 186Public domain
Show the original text
Parrotia (Hamamelidaceae). P. persica germ. best in 40(90% in 12th w) and less in 70-40(50% in 9-1 1'w)
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Parrotia p. 186. 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 Moderate 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. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

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

50% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Parrotia p. 186Public domain
Show the original text
Parrotia (Hamamelidaceae). P. persica germ. best in 40(90% in 12th w) and less in 70-40(50% in 9-1 1'w)
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Parrotia p. 186. 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.