Deno’s Garden

Iris bucharica

Genus Iris

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around October 26, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 161 days to germinate.

100% germination in 91–161 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Juno p. 41Public domain
Show the original text
Juno (Iridaceae). This genus was discussed in detail in a Chapter devoted to Aril Iris in the 1st Suppl. Four procedures were described for initiating germination. One of these was to collect the seeds as soon as the pod started to turn tan and to place the seeds immediately in moist towels at 40. Note that the seeds must immediately be placed at 40 for this procédure to work best. This procedure can be termed the "green seed" method. This method has now been confirmed with J. bucharica (green seeds) germ. 40(79% in 11-18.w) and'70D-40(44% in 7-10 w) for the first sample and 40(100% in 13-23 w) and 70D-40(92% in 6-10 w) for the second sample. Seeds DS 1 y germ. 70D-40(20% in 2nd w) and 40-70D-40(none) indicating that they were largely dead and seeds DS 2.5 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Juno p. 41. 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, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 29, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 70 days to germinate.

92% germination in 42–70 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Juno p. 41Public domain
Show the original text
Juno (Iridaceae). This genus was discussed in detail in a Chapter devoted to Aril Iris in the 1st Suppl. Four procedures were described for initiating germination. One of these was to collect the seeds as soon as the pod started to turn tan and to place the seeds immediately in moist towels at 40. Note that the seeds must immediately be placed at 40 for this procédure to work best. This procedure can be termed the "green seed" method. This method has now been confirmed with J. bucharica (green seeds) germ. 40(79% in 11-18.w) and'70D-40(44% in 7-10 w) for the first sample and 40(100% in 13-23 w) and 70D-40(92% in 6-10 w) for the second sample. Seeds DS 1 y germ. 70D-40(20% in 2nd w) and 40-70D-40(none) indicating that they were largely dead and seeds DS 2.5 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Juno p. 41. 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, 1998

Difficulty Low Rated by us, not by the source.

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

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Germination time not stated; 21 days assumed.

79% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Juno p. 41Public domain
Show the original text
Juno (Iridaceae). This genus was discussed in detail in a Chapter devoted to Aril Iris in the 1st Suppl. Four procedures were described for initiating germination. One of these was to collect the seeds as soon as the pod started to turn tan and to place the seeds immediately in moist towels at 40. Note that the seeds must immediately be placed at 40 for this procédure to work best. This procedure can be termed the "green seed" method. This method has now been confirmed with J. bucharica (green seeds) germ. 40(79% in 11-18.w) and'70D-40(44% in 7-10 w) for the first sample and 40(100% in 13-23 w) and 70D-40(92% in 6-10 w) for the second sample. Seeds DS 1 y germ. 70D-40(20% in 2nd w) and 40-70D-40(none) indicating that they were largely dead and seeds DS 2.5 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Juno p. 41. 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 4

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around July 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 29, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 70 days to germinate.

44% germination in 49–70 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Juno p. 41Public domain
Show the original text
Juno (Iridaceae). This genus was discussed in detail in a Chapter devoted to Aril Iris in the 1st Suppl. Four procedures were described for initiating germination. One of these was to collect the seeds as soon as the pod started to turn tan and to place the seeds immediately in moist towels at 40. Note that the seeds must immediately be placed at 40 for this procédure to work best. This procedure can be termed the "green seed" method. This method has now been confirmed with J. bucharica (green seeds) germ. 40(79% in 11-18.w) and'70D-40(44% in 7-10 w) for the first sample and 40(100% in 13-23 w) and 70D-40(92% in 6-10 w) for the second sample. Seeds DS 1 y germ. 70D-40(20% in 2nd w) and 40-70D-40(none) indicating that they were largely dead and seeds DS 2.5 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Juno p. 41. 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 5

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around September 24, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 23, 2025.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 1.5 years from start to sowing. Then 14 days to germinate.

20% germination in 14 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Juno p. 41Public domain
Show the original text
Juno (Iridaceae). This genus was discussed in detail in a Chapter devoted to Aril Iris in the 1st Suppl. Four procedures were described for initiating germination. One of these was to collect the seeds as soon as the pod started to turn tan and to place the seeds immediately in moist towels at 40. Note that the seeds must immediately be placed at 40 for this procédure to work best. This procedure can be termed the "green seed" method. This method has now been confirmed with J. bucharica (green seeds) germ. 40(79% in 11-18.w) and'70D-40(44% in 7-10 w) for the first sample and 40(100% in 13-23 w) and 70D-40(92% in 6-10 w) for the second sample. Seeds DS 1 y germ. 70D-40(20% in 2nd w) and 40-70D-40(none) indicating that they were largely dead and seeds DS 2.5 y were dead.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Juno p. 41. 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.