Deno’s Garden

Banksia formosa

Genus Banksia

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 February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 56 days to germinate.

80% germination in 56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dryandra p. 136Public domain
Show the original text
Dryandra (Proteaceae). D. formosa germ. 70D(40% in 4-8 w), 70D with GA-3(31% in 3rd w) and 40(80% in 8th w). Starting at 40 is best. The GA-3 seedlings were normal.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dryandra p. 136. 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 February 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 56 days to germinate.

40% germination in 28–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Dryandra p. 136Public domain
Show the original text
Dryandra (Proteaceae). D. formosa germ. 70D(40% in 4-8 w), 70D with GA-3(31% in 3rd w) and 40(80% in 8th w). Starting at 40 is best. The GA-3 seedlings were normal.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Dryandra p. 136. 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.