Deno’s Garden

Apium graveolens

Genus Apium

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around April 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on April 23, 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

    4 germinated in this phase.

Steps after step 2 run on after germination.

about 9 months from start to sowing. Then 77 days to germinate.

90% germination in 49–77 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Apium p. 20Public domain
Show the original text
Apium (Apiaceae). A. graveolens seeds DS 6 m germ. 100% in 6-14 d in 70D or 70L and 40(90% in 7-11 w)-70(4%). After 2 y DS seeds germ. 70D(47% in 1-4 w), and after 3 y DS seeds germ. 70D(3% in 10-18 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Apium p. 20. 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, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 9, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 8, 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 28 days to germinate.

47% germination in 7–28 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Apium p. 20Public domain
Show the original text
Apium (Apiaceae). A. graveolens seeds DS 6 m germ. 100% in 6-14 d in 70D or 70L and 40(90% in 7-11 w)-70(4%). After 2 y DS seeds germ. 70D(47% in 1-4 w), and after 3 y DS seeds germ. 70D(3% in 10-18 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Apium p. 20. 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, 1996

Difficulty Very high Rated by us, not by the source.

Start around March 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 18, 2024.

  1. Dry storage

    Duration: 1095 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 3 years from start to sowing. Then 18 days to germinate.

3% germination in 10–18 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Apium p. 20Public domain
Show the original text
Apium (Apiaceae). A. graveolens seeds DS 6 m germ. 100% in 6-14 d in 70D or 70L and 40(90% in 7-11 w)-70(4%). After 2 y DS seeds germ. 70D(47% in 1-4 w), and after 3 y DS seeds germ. 70D(3% in 10-18 d).
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Apium p. 20. 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.