Mendel’s Gardens

Indigofera heterantha

Himalayan Indigo

Family FabaceaeGenus Indigofera

Also published as Indigofera heteranthera. You are in the right place.

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around April 3, 2027 for a May 3 last frost.

  1. Nick or sand the seed coat

    A hole ground through the seed coat.

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 2 days to germinate.

100% germination in 2 days.

Grind a hole through the seed coat and it is 100% either way.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, IndigoferaPublic domain
Show the original text
Indigofera (Fabiaceae). I. heteranthera germ. 100% on the 2nd d at 70 and 100% in 5-8w at 40 providing a hole is ground through the seed coat. Without this hole germination is 9/15 in 4th w. when sown at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Indigofera. 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 February 8, 2027 for a May 3 last frost.

  1. Nick or sand the seed coat

    A hole ground through the seed coat.

  2. Cold moist stratification

    Temperature: 40°F 4°C

    100% germinated at 40 itself, in 5-8 weeks.

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

100% germination in 35–56 days.

Same result as at 70, weeks slower.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, IndigoferaPublic domain
Show the original text
Indigofera (Fabiaceae). I. heteranthera germ. 100% on the 2nd d at 70 and 100% in 5-8w at 40 providing a hole is ground through the seed coat. Without this hole germination is 9/15 in 4th w. when sown at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Indigofera. 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, 1993

Difficulty Moderate Rated by us, not by the source.

Start around March 8, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 28 days to germinate.

60% germination in 28 days.

Without the hole: three fifths of the seed, and a fortnight later.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, IndigoferaPublic domain
Show the original text
Indigofera (Fabiaceae). I. heteranthera germ. 100% on the 2nd d at 70 and 100% in 5-8w at 40 providing a hole is ground through the seed coat. Without this hole germination is 9/15 in 4th w. when sown at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Indigofera. 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.