Mendel’s Gardens

Inula ensifolia

Swordleaf Inula

Family AsteraceaeGenus Inula

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 March 21, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 15 days to germinate.

100% germination in 5–15 days.

Fresh seed or six months' dry storage at 70 or 40 -- it made no difference.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, InulaPublic domain
Show the original text
lnula (Asteraceae). All appear to be D-70 germinators. I. ensifolia germ. 70(100% in' 5-15 d) and 40-70(100% in 2 d-2 w) using fresh seed or seed DS 6m at 70 or 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Inula. 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 Low Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

  2. Warm moist stratification

    Temperature: 70°F 21°C

    100% after the move, in 2 days to 2 weeks.

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

100% germination in 2–14 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, InulaPublic domain
Show the original text
lnula (Asteraceae). All appear to be D-70 germinators. I. ensifolia germ. 70(100% in' 5-15 d) and 40-70(100% in 2 d-2 w) using fresh seed or seed DS 6m at 70 or 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Inula. 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.