Deno’s Garden

Aralia californica

Genus Aralia

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around January 2, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 1, 2026.

  1. Dry storage

    Duration: 180 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

  4. Warm moist stratification

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

about 15 months from start to sowing. Then 9 days to germinate.

100% germination in 3–9 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Aralia p. 21Public domain
Show the original text
Aralia (Araliaceae). A. californica (seeds received after 6 m DS) germ. 70D-40-70D(100% in 3-9 d), and 70L-40-70D(95% in 3-16 d), 70 GA-3(54% in 3rd w)-40-70D, and 40-70D(20% on 4th d)-40-70D(80% in 1-3 d). It is interesting that the 70-40-70'pattern is slowed down by an initial 3 m at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Aralia p. 21. 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 Moderate Rated by us, not by the source.

Start around December 26, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 25, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

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

about 15 months from start to sowing. Then 16 days to germinate.

95% germination in 3–16 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Aralia p. 21Public domain
Show the original text
Aralia (Araliaceae). A. californica (seeds received after 6 m DS) germ. 70D-40-70D(100% in 3-9 d), and 70L-40-70D(95% in 3-16 d), 70 GA-3(54% in 3rd w)-40-70D, and 40-70D(20% on 4th d)-40-70D(80% in 1-3 d). It is interesting that the 70-40-70'pattern is slowed down by an initial 3 m at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Aralia p. 21. 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 Moderate Rated by us, not by the source.

Start around October 10, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 9, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

    20 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

about 18 months from start to sowing. Then 3 days to germinate.

80% germination in 1–3 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Aralia p. 21Public domain
Show the original text
Aralia (Araliaceae). A. californica (seeds received after 6 m DS) germ. 70D-40-70D(100% in 3-9 d), and 70L-40-70D(95% in 3-16 d), 70 GA-3(54% in 3rd w)-40-70D, and 40-70D(20% on 4th d)-40-70D(80% in 1-3 d). It is interesting that the 70-40-70'pattern is slowed down by an initial 3 m at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Aralia p. 21. 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, 1996

Difficulty High Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Gibberellic acid soak

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

Steps after step 3 run on after germination.

about 9 months from start to sowing. Then 21 days to germinate.

54% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Aralia p. 21Public domain
Show the original text
Aralia (Araliaceae). A. californica (seeds received after 6 m DS) germ. 70D-40-70D(100% in 3-9 d), and 70L-40-70D(95% in 3-16 d), 70 GA-3(54% in 3rd w)-40-70D, and 40-70D(20% on 4th d)-40-70D(80% in 1-3 d). It is interesting that the 70-40-70'pattern is slowed down by an initial 3 m at 40.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Aralia p. 21. 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.