Deno’s Garden

Scrophularia lanceolata

Genus Scrophularia

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 21 days to germinate.

89% germination in 7–21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scrophularia p. 76Public domain
Show the original text
Scrophularia (Scrophulariaceae). S. lanceolata germ. 70 GA-3 (89% in 1-3 w), 40(4%)-70D(40% on 4th d), and 73% in April in outdoor treatment. Germination was 5-10% in 70D and 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scrophularia p. 76. 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 Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

73% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scrophularia p. 76Public domain
Show the original text
Scrophularia (Scrophulariaceae). S. lanceolata germ. 70 GA-3 (89% in 1-3 w), 40(4%)-70D(40% on 4th d), and 73% in April in outdoor treatment. Germination was 5-10% in 70D and 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scrophularia p. 76. 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 Moderate Rated by us, not by the source.

Start around October 3, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    4 germinated in this phase.

  2. Warm moist stratification

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

about 6 months from start to sowing. Then 4 days to germinate.

40% germination in 4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Scrophularia p. 76Public domain
Show the original text
Scrophularia (Scrophulariaceae). S. lanceolata germ. 70 GA-3 (89% in 1-3 w), 40(4%)-70D(40% on 4th d), and 73% in April in outdoor treatment. Germination was 5-10% in 70D and 70L.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Scrophularia p. 76. 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.