Deno’s Garden

Sparaxis villosa

Genus Sparaxis

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around February 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 22, 2025.

  1. Dry storage

    Duration: 730 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

about 2 years from start to sowing. Then 42 days to germinate.

100% germination in 21–42 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Synnotia p. 64Public domain
Show the original text
Synnotia (Iridaceae). Their is some indication that 3 m in 70L before shifting to 40 gives better germination than either 40 direct or 70D-40. Also DS for 1 y improved germination in the one species in which it was tried. More work is needed to confirm these provisional conclusions. S. villosa DS 6 m germ. 70L-40(100% in 4-9 w) and 70D(8% in 6-9 w)-40(4%)- 70D-40-70D-40(5%). Seeds DS 2 y germ. 40(100% in 3-6 w) and 70D-40(90% in 4th w) indicating that no dying had occurred and that fresh seeds would probably have germ. directly at 40.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Synnotia p. 64. 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 February 7, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on February 6, 2026.

  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

about 12 months from start to sowing. Then 63 days to germinate.

100% germination in 28–63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Synnotia p. 64Public domain
Show the original text
Synnotia (Iridaceae). Their is some indication that 3 m in 70L before shifting to 40 gives better germination than either 40 direct or 70D-40. Also DS for 1 y improved germination in the one species in which it was tried. More work is needed to confirm these provisional conclusions. S. villosa DS 6 m germ. 70L-40(100% in 4-9 w) and 70D(8% in 6-9 w)-40(4%)- 70D-40-70D-40(5%). Seeds DS 2 y germ. 40(100% in 3-6 w) and 70D-40(90% in 4th w) indicating that no dying had occurred and that fresh seeds would probably have germ. directly at 40.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Synnotia p. 64. 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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2024.

  1. Dry storage

    Duration: 730 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 2.5 years from start to sowing. Then 28 days to germinate.

90% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Synnotia p. 64Public domain
Show the original text
Synnotia (Iridaceae). Their is some indication that 3 m in 70L before shifting to 40 gives better germination than either 40 direct or 70D-40. Also DS for 1 y improved germination in the one species in which it was tried. More work is needed to confirm these provisional conclusions. S. villosa DS 6 m germ. 70L-40(100% in 4-9 w) and 70D(8% in 6-9 w)-40(4%)- 70D-40-70D-40(5%). Seeds DS 2 y germ. 40(100% in 3-6 w) and 70D-40(90% in 4th w) indicating that no dying had occurred and that fresh seeds would probably have germ. directly at 40.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Synnotia p. 64. 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 Very high Rated by us, not by the source.

Start around May 8, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on May 7, 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 germinated in this phase.

  4. Warm moist stratification

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

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  6. Warm moist stratification

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

  7. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    5 germinated in this phase.

Steps after step 2 run on after germination.

about 9 months from start to sowing. Then 63 days to germinate.

8% germination in 42–63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Synnotia p. 64Public domain
Show the original text
Synnotia (Iridaceae). Their is some indication that 3 m in 70L before shifting to 40 gives better germination than either 40 direct or 70D-40. Also DS for 1 y improved germination in the one species in which it was tried. More work is needed to confirm these provisional conclusions. S. villosa DS 6 m germ. 70L-40(100% in 4-9 w) and 70D(8% in 6-9 w)-40(4%)- 70D-40-70D-40(5%). Seeds DS 2 y germ. 40(100% in 3-6 w) and 70D-40(90% in 4th w) indicating that no dying had occurred and that fresh seeds would probably have germ. directly at 40.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Synnotia p. 64. 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.