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Telesonix jamesii

James' Saxifrage · James' Telesonix · James's Telesonix

Family SaxifragaceaeGenus Telesonix

Pink five-petalled flowers with deep red centers, crowded up a hairy stalk above round scalloped leaves.
FlowerCharmaine DelmatierPublic domain

About the plant

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

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Crimson-purpleFlora of North America
Native range
Colorado, New MexicoGBIF Backbone Taxonomy

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; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • James' false saxifrage is a rare plant of high, rocky granite habitats in the southern Rocky Mountains of Colorado, and possibly New Mexico and Wyoming. Wikipedia: Telesonix jamesii

Two sources report 5 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around March 28, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 27, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

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

about 12 months from start to step 5. Germination happens during step 5, in 14 days.

38% germination in 14 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Telesonix p. 64Public domain
Show the original text
Telesonix (Saxifragaceae). T. jamesii was found to require light for germination (2nd Ed.). A new sample behaved differently and germ.40-70D(1/10)-40- 70D-40(3/10), 70D-40-70D-40-70D(5/13 in 2nd w), and none in 70L. The second sample may have undergone extensive DS and had the light requirement die away.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Telesonix p. 64. 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 High Rated by us, not by the source.

Start around March 21, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 20, 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

    1/10 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

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

  5. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 12 months from start to step 5. Germination happens during step 5; time not stated, 21 days assumed.

30% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Telesonix p. 64Public domain
Show the original text
Telesonix (Saxifragaceae). T. jamesii was found to require light for germination (2nd Ed.). A new sample behaved differently and germ.40-70D(1/10)-40- 70D-40(3/10), 70D-40-70D-40-70D(5/13 in 2nd w), and none in 70L. The second sample may have undergone extensive DS and had the light requirement die away.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Telesonix p. 64. 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

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Telesonix p. 64Public domain
Show the original text
Telesonix (Saxifragaceae). T. jamesii was found to require light for germination (2nd Ed.). A new sample behaved differently and germ.40-70D(1/10)-40- 70D-40(3/10), 70D-40-70D-40-70D(5/13 in 2nd w), and none in 70L. The second sample may have undergone extensive DS and had the light requirement die away.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Telesonix p. 64. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 4

DerivedN. C. Deno, 1993

Difficulty High Rated by us, not by the source.

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

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

    9 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1, in 21 days.

38% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Telesonix p. 219Public domain
Show the original text
Telesonix (Saxifragaceae). T. jamesii required light and germ 70L(38% in 3rd w)-40-70L(9%), 70D(none), 40-70L(17% in 1L3 w). Seeds kept in 70D for 3 w were dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Telesonix p. 219. 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 5

DerivedN. C. Deno, 1993

Difficulty High 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 Light: light

about 3 months from start to step 2. Germination happens during step 2, in 21 days.

17% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Telesonix p. 219Public domain
Show the original text
Telesonix (Saxifragaceae). T. jamesii required light and germ 70L(38% in 3rd w)-40-70L(9%), 70D(none), 40-70L(17% in 1L3 w). Seeds kept in 70D for 3 w were dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Telesonix p. 219. 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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