Deno’s Garden

Rhodotypos scandens

Genus Rhodotypos

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate 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. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    16 germinated in this phase.

Steps after step 2 run on after germination.

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

65% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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 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. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    17 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

    2 germinated in this phase.

  6. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

Steps after step 2 run on after germination.

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

57% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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 High Rated by us, not by the source.

Start around December 21, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 20, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    25 germinated in this phase.

Steps after step 4 run on after germination.

about 15 months from start to sowing. Germination time not stated; 21 days assumed.

47% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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 High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Warm moist stratification

    Duration: 90 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

    16 germinated in this phase.

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    12 germinated in this phase.

Steps after step 2 run on after germination.

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

44% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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 December 21, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on December 20, 2025.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    28 germinated in this phase.

Steps after step 4 run on after germination.

about 15 months from start to sowing. Germination time not stated; 21 days assumed.

43% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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, 1993

Difficulty High Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    14 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    14 germinated in this phase.

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    11 germinated in this phase.

  6. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    3 germinated in this phase.

Steps after step 2 run on after germination.

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

24% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Rhodotypos p. 205Public domain
Show the original text
Rhodotypos (Rosaceae). A. tetrapetala gave multicycle germination with germination occurring at both 70 and 40.' Seeds collected in January germ. 70- 40(44%)-70(16%)-40(12%) and 40(14%)-70(24%)-40-70(14%)-40(11%)-70(3%). Seed DS 6 m at 40 germ. 70-40-70(47%)-40(25%) and 40(57%)-70(17%)-40-70(2%)- 40. Seed DS 6 m at 70 germ. 70-40-70(43%)-40(28%) and 40(65%)-70(16%).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Rhodotypos p. 205. 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.