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Heuchera cylindrica

Alpine Alumroot · Lava Alumroot · Mat Alumroot · Roundleaf Alumroot

Family SaxifragaceaeGenus Heuchera

Cream bell flowers with orange centers opening along a green stem, among pale buds, on a dry forest slope.
FlowerMatt Lavin from Bozeman, Montana, USACC BY-SA 2.0

About the plant

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

The plant

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Height
6.0 ft1.8 mPLANTS Database
Flower
WhitePLANTS Database
Blooms
Mid SpringPLANTS Database
Native range
Canada, lower 48 statesPLANTS Database

Growing conditions

Sun
Shade tolerance: MediumPLANTS Database
Soil
Adapted to coarse textured soilsPLANTS Database
Soil pH
7.0-8.0PLANTS Database
Moisture
Moisture use: LowPLANTS Database
Watering
Drought tolerance: HighPLANTS Database

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.

Worth knowing

  • Poker alumroot is native to western North America, from British Columbia to California and east to Wyoming and Montana. Wikipedia: Heuchera cylindrica

Protocol

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

  1. Sow and cover

    Temperature: 70°F 21°C Light: either

No stated waiting before sowing. Then 28 days to germinate.

30% germination in 14–28 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heuchera p. 152Public domain
Show the original text
Heuchera (Saxlfragaceae). The small seeds cannot be readily separated from the capsules and chaff so that seed counts are inaccurate. H, cylindrica germ. 70D(5% in 3rd w), 70L(13% in 3rd w), 40(4%)-70, and 40% in April in outdoor treatment. These behaviors contrast sharply with the behaviors of seeds that had been DS for 2 y. These germ. 70L(43% in 3rd w), .70D GA-3(31% in 2- 4 w), and 700(none). The GA-3 seedlings were normal. H. cylindrica v. alpina germ. 70(30-40% in 2-4 w) and 40-70(none). Light had no effect. In view of the results with H. cylindrica, outdoor treatment might have given even higher germination. Note that in both species, a prior 3 m at 40 was deleterious. Seeds DS for 2 y was dead.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heuchera p. 152. 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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