Small-Flowered Alum Root, Crevice Heuchera, Mountain Saxifrage
Heuchera micrantha

Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Heuchera (HEW-ker-a) (Info)
Species: micrantha (my-KRANTH-uh) (Info)
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Category:

Perennials

Height:

18-24 in. (45-60 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer

Foliage:

Herbaceous

Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Non-patented

Propagation Methods:

By dividing the rootball

Seed Collecting:

Unknown - Tell us

Foliage Color:

Burgundy

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Seward, Alaska

Crestline, California

Paradise, California

Carrollton, Georgia

Gardeners' Notes:

0
positives
1
neutral
0
negatives
RatingContent
Neutral

On Nov 6, 2011, ogon from Paradise, CA (Zone 9a) wrote:

H. micrantha is endemic to British Columbia, Washington, Oregon, Idaho, and California. It is usually found on mountain-sides and rock outcroppings, but is also occassionally found growing directly in the soil. It can be found in a wide variety of conditions, from arid cliffs in the Central Valley, to the cool, moist coastal bluffs of the Pacific Northwest. In warm climates it does best when grown in shade, but in cooler coastal climates it can also be found growing in full sun. While generally evergreen, it will sometimes die back to the ground in extreme drought or heat, but it will re-appear when the rainy season returns. Flowers range in color from white to red, with white and pink being most common.