Deno’s Garden

Phormium tenax

Genus Phormium

Two sources report three treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

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

Start around March 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 15, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 12 months from start to sowing. Germination time not stated; 21 days assumed.

3% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Phormium p. 54Public domain
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Phormium (Liliaceae). Definitive conclusions cannot be drawn because of the small numbers of seeds. P. tenax germ. 70L{1/3 in 4th w) and 70D(none). Seeds DS 1 y germ. were dead. * , P. tenax variegatum DS 1 y germ. 70D( 1/32) and 70L(none).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Phormium p. 54. 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 Very high Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 21 days to germinate.

4% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Phormium p. 65Public domain
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Phormium (Liliaceae). P. tenax purpureum germ. 70L(1/12 in 2nd w) J 70D(1/26 in 3rd w), and 40(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Phormium p. 65. 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 March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 14 days to germinate.

8% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Phormium p. 65Public domain
Show the original text
Phormium (Liliaceae). P. tenax purpureum germ. 70L(1/12 in 2nd w) J 70D(1/26 in 3rd w), and 40(none).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Phormium p. 65. 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.