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Sedum lanceolatum

Lanceleaf Stonecrop · Spearleaf Stonecrop

Family CrassulaceaeGenus Sedum

Clusters of yellow buds tipping fleshy stems crowded with small succulent leaves flushed orange-red, among broken rock.
FlowerWalter Siegmund (talk)CC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
perennialPlants of the World Online
Flower
Canary yellow, golden yellowFlora of North America

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Flora of North America — Flora of North America Editorial Committee.

Worth knowing

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around June 30, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 29, 2026.

  1. Dry storage

    Duration: 180 days

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    3 germinated in this phase.

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 9 months from start to step 3. Germination happens during step 3, in 10 days.

56% germination in 1–10 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Sedum p. 213Public domain
Show the original text
Sedum (Crassulaceae). All Sedums tolerated OS and germ. largely at 70. Germination in S. lanceolatum germ. 70(30-40% in 1-8 w) and 40(3%)-70(56% in 1-10 d) using seed DS 6 m at 70 or 40. Fresh seed germ. less in 40(13%)-70(53%) and even less and more extended when sown at 70 indicating that the species is D-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Sedum p. 213. 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 Moderate Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    13 germinated in this phase.

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

53% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Sedum p. 213Public domain
Show the original text
Sedum (Crassulaceae). All Sedums tolerated OS and germ. largely at 70. Germination in S. lanceolatum germ. 70(30-40% in 1-8 w) and 40(3%)-70(56% in 1-10 d) using seed DS 6 m at 70 or 40. Fresh seed germ. less in 40(13%)-70(53%) and even less and more extended when sown at 70 indicating that the species is D-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Sedum p. 213. 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 Moderate Rated by us, not by the source.

Start around August 13, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 12, 2026.

  1. Dry storage

    Duration: 180 days

  2. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 56 days to germinate.

30% germination in 7–56 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Sedum p. 213Public domain
Show the original text
Sedum (Crassulaceae). All Sedums tolerated OS and germ. largely at 70. Germination in S. lanceolatum germ. 70(30-40% in 1-8 w) and 40(3%)-70(56% in 1-10 d) using seed DS 6 m at 70 or 40. Fresh seed germ. less in 40(13%)-70(53%) and even less and more extended when sown at 70 indicating that the species is D-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Sedum p. 213. 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.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

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