Deno’s Garden

Berberis julianae

Genus Berberis

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around August 20, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 19, 2026.

  1. Clean the flesh off the seed

  2. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Temperature: 40°F 4°C

about 6 months from start to sowing. Then 49 days to germinate.

94% germination in 28–49 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Berberis p. 107Public domain
Show the original text
Berberis (Berberidaceae). B. julianae germ. best at 40(92% in 8-12 w) or outdoor treatment (88% in late April and early May) and poorer in 70(18% in 3-11 w)-40(57% in 9-12 w)-70(12% in 2- 7 d). Seeds DS 6 m at 70 in the WC state also germ. best at 40(94% in 4-7w) and less in 70(74% in 1-8 w). Although germination at 70 was markedly improved by DS; starting at 40 was still the best. Treatment of the DS seeds with GA-3 had no effect on the rate or percent germination at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Berberis p. 107. 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 January 11, 2027 for a May 3 last frost.

  1. Clean the flesh off the seed

  2. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 84 days to germinate.

92% germination in 56–84 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Berberis p. 107Public domain
Show the original text
Berberis (Berberidaceae). B. julianae germ. best at 40(92% in 8-12 w) or outdoor treatment (88% in late April and early May) and poorer in 70(18% in 3-11 w)-40(57% in 9-12 w)-70(12% in 2- 7 d). Seeds DS 6 m at 70 in the WC state also germ. best at 40(94% in 4-7w) and less in 70(74% in 1-8 w). Although germination at 70 was markedly improved by DS; starting at 40 was still the best. Treatment of the DS seeds with GA-3 had no effect on the rate or percent germination at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Berberis p. 107. 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 Low Rated by us, not by the source.

  1. Clean the flesh off the seed

  2. Sow outdoors and leave it

    Up in late April and early May.

No stated waiting before sowing.

88% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Berberis p. 107Public domain
Show the original text
Berberis (Berberidaceae). B. julianae germ. best at 40(92% in 8-12 w) or outdoor treatment (88% in late April and early May) and poorer in 70(18% in 3-11 w)-40(57% in 9-12 w)-70(12% in 2- 7 d). Seeds DS 6 m at 70 in the WC state also germ. best at 40(94% in 4-7w) and less in 70(74% in 1-8 w). Although germination at 70 was markedly improved by DS; starting at 40 was still the best. Treatment of the DS seeds with GA-3 had no effect on the rate or percent germination at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Berberis p. 107. 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, 1993

Difficulty Low Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Clean the flesh off the seed

  2. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  3. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 56 days to germinate.

74% germination in 7–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Berberis p. 107Public domain
Show the original text
Berberis (Berberidaceae). B. julianae germ. best at 40(92% in 8-12 w) or outdoor treatment (88% in late April and early May) and poorer in 70(18% in 3-11 w)-40(57% in 9-12 w)-70(12% in 2- 7 d). Seeds DS 6 m at 70 in the WC state also germ. best at 40(94% in 4-7w) and less in 70(74% in 1-8 w). Although germination at 70 was markedly improved by DS; starting at 40 was still the best. Treatment of the DS seeds with GA-3 had no effect on the rate or percent germination at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Berberis p. 107. 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, 1993

Difficulty High Rated by us, not by the source.

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

  1. Clean the flesh off the seed

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    18 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    12 germinated in this phase.

Steps after step 3 run on after germination.

about 6 months from start to sowing. Then 84 days to germinate.

57% germination in 63–84 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Berberis p. 107Public domain
Show the original text
Berberis (Berberidaceae). B. julianae germ. best at 40(92% in 8-12 w) or outdoor treatment (88% in late April and early May) and poorer in 70(18% in 3-11 w)-40(57% in 9-12 w)-70(12% in 2- 7 d). Seeds DS 6 m at 70 in the WC state also germ. best at 40(94% in 4-7w) and less in 70(74% in 1-8 w). Although germination at 70 was markedly improved by DS; starting at 40 was still the best. Treatment of the DS seeds with GA-3 had no effect on the rate or percent germination at 70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Berberis p. 107. 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.