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Heuchera americana L.
American alumroot, Alumroot
USDA Symbol: HEAM6
USDA Native Status: L48 (N), CAN (N)
American alumroots leafless, hairy, sticky flower stalk rises 18-36 in. and surrounds its upper third with loosely grouped, minute, greenish, cup-shaped flowers. A somewhat hairy stalk bearing yellowish-green, bell-shaped, drooping flowers in loose, slender, branching clusters; usually 4-5 flowers on each branch. A clump of attractive basal leaves springs from an underground stem. The leaves are fuzzy, oval, lobed and somewhat evergreen.
Several similar Heuchera species occur in the East, many of which are difficult to distinguish from one another. The genus name honors the 18th-century German physician and botanist Johann von Heucher.
Plant CharacteristicsDuration: Perennial Habit: Herb Inflorescence: Panicle Size Notes:
Usually around 18 inches high, but can grow to 3 feet Leaf:
Deep green. Shades of purple, red, and yellow in fall. Autumn Foliage:
Dark red Size Class:
Bloom InformationBloom Color: Red , Green , Purple , Brown
Bloom Time: Mar , Apr , May , Jun , Jul , Aug
Bloom Notes: Pale greenish yellow or pale purple, so pale they almost appear white. Delicate and misty looking.
, WV Canada: ON Native Distribution: CT
to Ont. & MI,
s. to GA
& OK; Eastern North America, Zones 5 to 8. Native Habitat:
Rich woods; rock outcrops
Growing ConditionsWater Use:
Low , Medium Light Requirement:
Part Shade , Shade Soil Moisture:
Dry , Moist Soil pH:
Acidic (pH<6.8) Soil Description:
Well-drained, humus-rich, acid soils, sometimes rocky. Tolerates poor soil, low moisture, and lime. Conditions Comments: In
sunny areas, the leaves take on a bronze cast several months into the growing season.
BenefitUse Ornamental: Valued as a foliage plant and groundcover in shady Eastern gardens. Also grows well in pots.
Interesting Foliage: yes
PropagationPropagation Material: Root Division , Seeds
Description: Sow seed in spring. Divide root crown in spring or fall.
Seed Collection: Check for mature seeds in dark-brown capsules 3-4 weeks after the plant has flowered. The seeds are black when mature and are smaller than grains of black pepper. Dried seeds may be stored, uncleaned, in sealed, refrigerated containers.
Commercially Avail: yes
Maintenance: The appearance of the plant is enhanced by division of the clump every 3 to 4 years.
National Wetland Indicator Status
This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1
(Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here
for map of regions.
Record Last Modified: 2013-09-09
Research By: TWC Staff