Deno’s Garden

Averrhoa carambola

Genus Averrhoa

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 42 days to germinate.

75% germination in 42 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Averrhoa p. 17Public domain
Show the original text
Averrhoa (Oxalidaceae). A. carambola required either light at 70 or a prior 3 m at 40 for germination. The data were 70L(6/8 in 6th w), 70D(none), 40-70L(3/5 in 4th w), and 40-70D(2/3 in 4th w). When the sample in 70D was shifted to 70L after 10 w, 5/8 germ. in 10-12 d.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Averrhoa p. 17. 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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

about 6 months from start to sowing. Then 28 days to germinate.

67% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Averrhoa p. 17Public domain
Show the original text
Averrhoa (Oxalidaceae). A. carambola required either light at 70 or a prior 3 m at 40 for germination. The data were 70L(6/8 in 6th w), 70D(none), 40-70L(3/5 in 4th w), and 40-70D(2/3 in 4th w). When the sample in 70D was shifted to 70L after 10 w, 5/8 germ. in 10-12 d.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Averrhoa p. 17. 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, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

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

about 6 months from start to sowing. Then 28 days to germinate.

60% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Averrhoa p. 17Public domain
Show the original text
Averrhoa (Oxalidaceae). A. carambola required either light at 70 or a prior 3 m at 40 for germination. The data were 70L(6/8 in 6th w), 70D(none), 40-70L(3/5 in 4th w), and 40-70D(2/3 in 4th w). When the sample in 70D was shifted to 70L after 10 w, 5/8 germ. in 10-12 d.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Averrhoa p. 17. 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.