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Heuchera micrantha (Crevice Alumroot)

Crevice Alumroot, Common Alumroot

Heuchera micrantha, Crevice Alumroot, Common Alumroot, Shade plants, Evergreen plants, Foliage plant, Blue foliage, Purple Foliage

Heuchera micrantha (Crevice Alumroot) is a compact, mound-forming perennial boasting decorative evergreen rosettes of round, scalloped, reddish leaves. In late spring to midsummer, panicles of small, bell-shaped, creamy-white flowers bloom on slender, dark red stems rising up to 24 in. (60 cm), well above the foliage. A great addition to the rock garden, perennial border, as edging along paths or in containers.

  • Grows up to 18-24 in. tall (45-60 cm) and 12-24 in. wide (30-60 cm). This sturdy performer is not only easy to grow, but also requires little maintenance and is pest and disease free!
  • Performs best in part shade, in rich, humusy, medium moisture, well-drained soils. If grown in full sun, make sure the soil remains consistently moist or the foliage might decline. Thrives in dry shade, once established.
  • It is attractive to butterflies and hummingbirds and often ignored by deer.
  • A spectacular addition to beds and borders, rock gardens, woodland gardens and is ideal as a groundcover, edger along paths or in containers. Fabulous when planted in groups!
  • Propagate by seed (no treatment) or cuttings (lateral rosettes).
  • Remove stems of faded flowers to promote additional bloom. Apply winter mulch after the ground freezes to help prevent root heaving.
  • Native to western North America from British Columbia to California.

Requirements

Hardiness 4 - 9
Heat Zones 1 - 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Saxifragaceae
Genus Heuchera
Common names Alum Root, Coral Bells
Exposure Full Sun, Partial Sun, Shade
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 24" (60cm)
Maintenance Low
Water Needs Average
Soil Type Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy, Evergreen
Native Plants United States, California, Pacific Northwest, Oregon, Washington, Idaho
Tolerance Full Shade, Deer
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Banks And Slopes, Beds And Borders, Edging, Ground Covers, Patio And Containers, Underplanting Roses And Shrubs
Garden Styles Informal and Cottage, City and Courtyard, Gravel and Rock Garden
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Heuchera (Coral Bells)
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Alternative Plants to Consider

Heuchera ‘Pluie de Feu’ (Coral Bells)
Heuchera ‘Amber Waves’ (Coral Bells)
Heuchera ‘Cherry Cola’ (Coral Bells)
Heuchera ‘Milan’ (Coral Bells)
Heuchera ‘Berry Smoothie’ (Coral Bells)
Heuchera NORTHERN EXPOSURE™ Red (Coral Bells)

Recommended Companion Plants

Erysimum ‘Apricot Twist’ (Wallflower)
Rosa ‘Ballerina’ (Hybrid Musk Rose)
Alchemilla mollis (Lady’s Mantle)
Tropaeolum majus (Nasturtium)

Find In One of Our Guides or Gardens

Best Foliage Plants for Your Garden
30 Great Perennials for Shade
Heuchera (Coral Bells)
Best Flowers to Attract Hummingbirds
While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 4 - 9
Heat Zones 1 - 8
Climate Zones 1, 1A, 1B, 2, 2A, 2B, 3, 3A, 3B, 4, 5, 6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Saxifragaceae
Genus Heuchera
Common names Alum Root, Coral Bells
Exposure Full Sun, Partial Sun, Shade
Season of Interest Spring (Early, Mid, Late)
Summer (Early, Mid, Late)
Fall
Winter
Height 1' - 2'
(30cm - 60cm)
Spread 1' - 2'
(30cm - 60cm)
Spacing 24" (60cm)
Maintenance Low
Water Needs Average
Soil Type Loam, Sand
Soil pH Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Cut Flowers, Showy, Evergreen
Native Plants United States, California, Pacific Northwest, Oregon, Washington, Idaho
Tolerance Full Shade, Deer
Attracts Bees, Butterflies, Hummingbirds
Garden Uses Banks And Slopes, Beds And Borders, Edging, Ground Covers, Patio And Containers, Underplanting Roses And Shrubs
Garden Styles Informal and Cottage, City and Courtyard, Gravel and Rock Garden
How Many Plants
Do I Need?
Explore Great Plant Combination Ideas
Heuchera (Coral Bells)
Not sure which Heuchera (Coral Bells) to pick?
Compare Now

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