woodland wildflower
American alumroot
Heuchera americana
Also known as Alumroot

Native to much of the USA and southern Canada
Connecticut to Ontario and Michigan, south to Georgia and Oklahoma; Eastern North America, Zones 5 to 8.
- Light Part shade to shade Sun tolerance
- Moisture Dry to moist Moisture preference
- Zones 5–8 Cold to heat range
- Bloom Mar–Aug Flowering time
- Height
- Life cycle Perennial Annual to perennial
In the garden
A woodland wildflower for part to full shade and dry to moist soil. Hardy in USDA zones 5–8.
Growing conditions
Hardiness zones
Pollinators & wildlife
- Bees Common Eastern Bumble Bee
also Western Honey Bee, American Bumble Bee, Ligated Furrow Bee +17 more
Pure Green Sweat bee, Golden Sweat Bee, Colletes nudus, Alumroot Cellophane Bee, Experienced Sweat Bee, Maine Blueberry Bee, hoary sweat bee, Cresson's Nomad Bee, Broad-faced Masked Bee, Buff-tailed Bumble Bee, Illinois Cuckoo Sweat Bee, Lasioglossum platyparius, Early Bumble Bee, Garden Bumble Bee, Lunate Longhorn-cuckoo Bee, Colourful Willow Miner Bee, Augochlorella persimilis - Moths Ipsilon Dart Moth also Acontia candefacta
- Flower flies Volucella bombylans also Hemipenthes sinuosus
- Also visited by
- Hummingbirds: Ruby-throated Hummingbird
- Wasps: Fraternal Potter Wasp
- Butterflies: Viceroy
- Beetles: Downy Long-horned Beetle
Butterflies that use this plant
Documented host and nectar records. Each links to a planting guide for that butterfly.
- Viceroynectar
Full plant details
Where it grows
- Habitat
- WoodlandThe wild plant community it grows in.
- Native range
- Much of the USA and southern CanadaUnited States (27): AL, AR, CT, DC, DE, GA, IA, IL, IN, KS, KY, LA, MD, MI, MO, MS, NC, NE, NJ, NY, OH, OK, PA, SC, TN, VA, WV. Canada (1): ON. Where it grows wild on its own, by state and province.
- Native distribution
- Connecticut to Ontario and Michigan, south to Georgia and Oklahoma; Eastern North America, Zones 5 to 8.The same native range, usually more exact than the state list, and often noting where it has spread beyond it.
Growing conditions
- Light
- Part shade to shadeHow much sun it takes, from full sun to full shade.
- Moisture
- Dry to moistThe soil dampness it prefers, from dry to wet.
- Hardiness zones
- USDA 5–8 · Canadian 6–7The cold-to-heat climate range it survives.
- Soil
- Well-drained, humus-rich, acid soils, sometimes rocky. Tolerates poor soil, low moisture, and limeThe soils it grows in naturally.
- Soil texture
- Light to medium (sandy to loamy)The soil grade it prefers, from sand to clay.
- Soil pH
- Mildly acid to mildly alkalineThe acidity to alkalinity it tolerates (7 is neutral).
- Water use
- Low to mediumHow thirsty it is, a rough guide to how often to water.
Growth & form
- Spread
- ~1 ft (0.3 m)How wide one plant gets, a guide to spacing.
- Life cycle
- PerennialWhether it lives a single season (annual), two (biennial), or returns for years (perennial).
- Growth rate
- ModerateA relative ranking versus other plants of the same type (USDA), not an absolute rate.
Flowers, foliage & fruit
- Type
- WildflowerWhat kind of plant it is.
- Bloom
- Mar–AugWhen it flowers.
- Flower color
- Red, Green, Purple, BrownThe bloom color, or colors.
- Toxicity
- None knownWhether any part is poisonous to people or pets.