Deno’s Garden

Hylotelephium spectabile

Genus Hylotelephium

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low 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. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

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

90% germination in 14–28 days.

This source doesn't state how long.

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. spectabile germ. 70(90-100% in 1-6 d) and 40(90-100% in 2-4 w) using seed DS 6 m at 70 or 40 and 70(90% in 2-12 d) and 40(75%)-70(25%) using fresh seed.
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 Low Rated by us, not by the source.

Start around October 1, 2026 for a May 3 last frost.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C

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

90% germination in 1–6 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. spectabile germ. 70(90-100% in 1-6 d) and 40(90-100% in 2-4 w) using seed DS 6 m at 70 or 40 and 70(90% in 2-12 d) and 40(75%)-70(25%) using fresh seed.
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 Low Rated by us, not by the source.

Start around March 24, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 12 days to germinate.

90% germination in 2–12 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. spectabile germ. 70(90-100% in 1-6 d) and 40(90-100% in 2-4 w) using seed DS 6 m at 70 or 40 and 70(90% in 2-12 d) and 40(75%)-70(25%) using fresh seed.
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 4

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

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    25 germinated in this phase.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Germination time not stated; 21 days assumed.

75% 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. spectabile germ. 70(90-100% in 1-6 d) and 40(90-100% in 2-4 w) using seed DS 6 m at 70 or 40 and 70(90% in 2-12 d) and 40(75%)-70(25%) using fresh seed.
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.