Heuchera, Alum Root, Alumroot, Coral Bells, Coralbells 'Blackout'

Heuchera

Family
Saxifragaceae (saks-ih-frag-AY-see-ee)
Genus
Heuchera (HEW-ker-a)
Synonym
Spacing
6-12 in. (15-30 cm)
Hardiness
12-15 in. (30-38 cm)
Sun Exposure
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)
Bloom Color
Sun to Partial Shade
Bloom Time
Foliage
Cream/Tan
Sun Exposure
Hardiness
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Time
Bloom Time
Bloom Color
Bloom Color
Bloom Time
Other Details
Other details
Mid Summer
Propagation Methods
Grown for foliage
Herbaceous
This plant is resistant to deer
Seed Collecting
Category
By dividing the rootball
Soil pH requirements
Patent Information
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Perennials
Seed Collecting
Fruit Shape
Fruit Size
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Fruit Colors
Growing Habit
Days to Maturity
Seed Type
Disease Resistance
Leaf Type
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Other details
Propagation Methods
Soil pH requirements
Patent Information
Plant Size (check one)
Growing Habit
Growth Rate
Leaf Shape
Leaf Appearance
Degree to which the appearance is present
Leaf Texture (top)
Leaf Texture (bottom)
Leaf Color
Color of Leaf Margin
Leaf Substance
Number of Vein Pairs
Appearance of Margin
Margin Width
Flower Shape
Patented
Flower Fragrance
Does it set seed?
Flower Size
Flower Type
Blooming Habit
Foliage Habit
Color Patterns
Awards (if applicable)
Seed Type
Growth Habit
Days to Maturity
Awards (if applicable)
Bloom Shape
Other Details
Pruning Instructions
Kernel Color
Flower Shape
Flower Habit
Bloom Size
Color Pattern
Bloom Shape
Pruning Groups
Bloom Diameter
Heat (Pungency)
Fruit Shape
Fruit Size
Fruit Color
Disease Resistance
Seed Type
Flower Size
Size/Type
Flower Characteristics
Leaf Shape/Type
Leaf Texture
Leaf Color
Propagation
Pollination
Bearing Habit
Rootstock Vigor
Disease Resistance
Fruit Usage
Classification
Dark/Black
Orange/Apricot
Regional

This plant is said to grow outdoors in the following regions:

Dracut, Massachusetts

Royal Oak, Michigan

Orchard Park, New York

Coshocton, Ohio

Williamsburg, Ohio

Norristown, Pennsylvania

Wilkes Barre, Pennsylvania

Freeland, Washington

Kalama, Washington

show all

Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
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M
Whidbey Island, WA (Zone 8b) | August 2013 | positive

Really dark foliage if grown in the shade. This is the third year for this, and it bloomed beautifully, although the flowers are tiny, an...Read More

B
Orchard Park, NY (Zone 5a) | March 2012 | positive

I have several coral bell varieties in my afternoon shade garden, however I believe this one reseeds itself? It is planted next to a flag...Read More

S
Norristown, PA (Zone 6b) | November 2009 | neutral

These Heuchera did not survive their first summer for me. They just dried up and died. They seemed to need more water than my others.

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