Heuchera cylindrica
Common Name(s):
Alumroot
Roundleaf Alumroot
Synonym:
Flower:
White
Blooms :
May
to:
Aug
Small, cup-shaped, cream to yellowish green flowers, densely packed in spike-like panicles to 6" long, bloom from late spring to summer atop tall, slender, leafless flowering stems rising well above the foliage mound to 20-30? tall.
Botanical Description
Fragrant?
NO
Family:
Saxifragaceae
Herbaceous Plant, Perennial
Foliage:
Green
Ovate to broadly heart-shaped, leathery, usually hairy, maple-like, dark green leaves (to 3" wide) with toothed and scalloped margins. Leaves typically form a compact basal mound to 6? tall and to 12? wide.
Fall Color?
NO
Deciduous
Photo by:
Heading 6
Oregon Native?
YES
West State Native?
YES
Origins:
Western North America
Site Selection
Minimum USDA Hardiness Zone:
3
Water Needs:
M
Sun Needs:
Partial Sun
Deer Resistant?
NO
Firewise?
NO
Height:
1-2.5'
Spread:
9-18"
Growth Rate:
Fast
Native Habitat:
Rocky banks, slopes, subalpine meadows
Soil:
Best grown in humusy, organically rich, medium moisture, well-drained soils
Care Recommendations
Maintenance Level:
Medium
Fertilizer:
Requires no fertilizer
Mulch:
Well-rotted compost, leaf mold, light shredded bark
Plant in part shade in loose, rocky, or well-drained soil, provide regular watering first year then deep watering during dry spells, apply compost or balanced slow-release fertilizer in spring, cut back spent flower stalks after blooming, mulch in late fall, divide every 3-5 years
Long Term:
Winter:
Apply mulch if not done in fall, cam leave dead flowering stalks til spring, ensure crown is above soil line
Spring:
Trim away any dead or tattered winter leaves, apply light top dressing of compost or slow-release balanced fertilizer, ensure good drainage
Summer:
Light watering, protection from harsh afternoon sun, occasional deadheading of spent flowers
Fall:
Reduce watering, snip off dead or rotting lower leaves and old flower stalks, apply a light layer of mulch or leaf mold, divide if needed
General Care Comments:
Plant in full sun to part shade, well-drained soil, water regularly first year then occasional deep watering during dry spells, remove dead or damaged leaves in spring, deadhead, divide every 3-5 years
Common Problems
Waterlogged soils, leaf scorch, frost heaving
Diseases:
Rust, root rot, leaf spot, downy mildew
Insects:
Black vine weevils, mealybugs
Environmental Problems:
Winter frost heaving, excessive moisture, poorly drained soil, intense sunlight, water stress, high humidity, stagnant air
Pests:
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