Deno’s Garden

Cercocarpus intricatus

Genus Cercocarpus

Two sources report 8 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around January 12, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on January 11, 2025.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 2 years from start to sowing. Then 84 days to germinate.

16% germination in 49–84 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Cercocarpus p. 23Public domain
Show the original text
Cercocarpus (Rosaceae). The data on C. intricatus is now more complete. Seeds germ. 40(81% in 1-3 w)-70D(15% in 2 d-2 w) and 70D(12% in 2nd w)-40(52% in 5-9 w). Seeds DS 1 y germ. 70D(17% in 10-12 w)-40(40% in 8th w). Seeds DS 2 y germ. 70D(3/19 in 7-12 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Cercocarpus p. 23. 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 August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2025.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Warm moist stratification

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

    17 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 1.5 years from start to sowing. Then 56 days to germinate.

40% germination in 56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Cercocarpus p. 23Public domain
Show the original text
Cercocarpus (Rosaceae). The data on C. intricatus is now more complete. Seeds germ. 40(81% in 1-3 w)-70D(15% in 2 d-2 w) and 70D(12% in 2nd w)-40(52% in 5-9 w). Seeds DS 1 y germ. 70D(17% in 10-12 w)-40(40% in 8th w). Seeds DS 2 y germ. 70D(3/19 in 7-12 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Cercocarpus p. 23. 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 Moderate Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

    15 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Then 21 days to germinate.

81% germination in 7–21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Cercocarpus p. 23Public domain
Show the original text
Cercocarpus (Rosaceae). The data on C. intricatus is now more complete. Seeds germ. 40(81% in 1-3 w)-70D(15% in 2 d-2 w) and 70D(12% in 2nd w)-40(52% in 5-9 w). Seeds DS 1 y germ. 70D(17% in 10-12 w)-40(40% in 8th w). Seeds DS 2 y germ. 70D(3/19 in 7-12 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Cercocarpus p. 23. 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 August 6, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 5, 2026.

  1. Warm moist stratification

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

    12 germinated in this phase.

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 63 days to germinate.

52% germination in 35–63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Cercocarpus p. 23Public domain
Show the original text
Cercocarpus (Rosaceae). The data on C. intricatus is now more complete. Seeds germ. 40(81% in 1-3 w)-70D(15% in 2 d-2 w) and 70D(12% in 2nd w)-40(52% in 5-9 w). Seeds DS 1 y germ. 70D(17% in 10-12 w)-40(40% in 8th w). Seeds DS 2 y germ. 70D(3/19 in 7-12 w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Cercocarpus p. 23. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around January 11, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

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

50% germination in 56–84 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Cercocarpus p. 30Public domain
Show the original text
Cercocarpus (Rosaceae). C. intricatus germ. 70D(10%)-40(5%)-70D(17%) and 40(50% in 8-12 w). A second sample germ. 40(60% in 1-3 w) and 70D(12% on 2nd w). The patterns are similar.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Cercocarpus p. 30. 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 6

DerivedN. C. Deno, 1996

Difficulty Moderate 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. Then 21 days to germinate.

60% germination in 7–21 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Cercocarpus p. 30Public domain
Show the original text
Cercocarpus (Rosaceae). C. intricatus germ. 70D(10%)-40(5%)-70D(17%) and 40(50% in 8-12 w). A second sample germ. 40(60% in 1-3 w) and 70D(12% on 2nd w). The patterns are similar.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Cercocarpus p. 30. 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 7

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

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

12% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Cercocarpus p. 30Public domain
Show the original text
Cercocarpus (Rosaceae). C. intricatus germ. 70D(10%)-40(5%)-70D(17%) and 40(50% in 8-12 w). A second sample germ. 40(60% in 1-3 w) and 70D(12% on 2nd w). The patterns are similar.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Cercocarpus p. 30. 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 8

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. Warm moist stratification

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

    10 germinated in this phase.

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    5 germinated in this phase.

  3. Warm moist stratification

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

about 9 months from start to sowing. Germination time not stated; 21 days assumed.

17% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Cercocarpus p. 30Public domain
Show the original text
Cercocarpus (Rosaceae). C. intricatus germ. 70D(10%)-40(5%)-70D(17%) and 40(50% in 8-12 w). A second sample germ. 40(60% in 1-3 w) and 70D(12% on 2nd w). The patterns are similar.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Cercocarpus p. 30. 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.