Heuchera, Alum Root, Alumroot, Coral Bells, Coralbells 'Plum Pudding'


Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Heuchera (HEW-ker-a) (Info)
Cultivar: Plum Pudding
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6-12 in. (15-30 cm)


9-12 in. (22-30 cm)


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)

Sun Exposure:

Sun to Partial Shade

Light Shade

Partial to Full Shade

Bloom Color:

Pale Pink


Bloom Time:

Late Spring/Early Summer

Mid Summer


Grown for foliage





Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

7.9 to 8.5 (alkaline)

Patent Information:


Propagation Methods:

By dividing the rootball

From leaf cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:



Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


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

Anchorage, Alaska

Ashland, California

Fresno, California

San Jose, California

Silverado, California

Glastonbury, Connecticut

New Milford, Connecticut

Dover, Delaware

Lawrenceville, Georgia

Boise, Idaho

Ashton, Illinois

Bartlett, Illinois

Buffalo Grove, Illinois

Mount Prospect, Illinois

Naperville, Illinois

Plainfield, Illinois

Spring Grove, Illinois

Petersburg, Indiana

Delhi, Iowa

Des Moines, Iowa

Barbourville, Kentucky

Hebron, Kentucky

Latonia, Kentucky

Lexington, Kentucky

Lutherville Timonium, Maryland

Dracut, Massachusetts

Franklin, Massachusetts

Uxbridge, Massachusetts

West Roxbury, Massachusetts

Lake Odessa, Michigan

Ludington, Michigan

Royal Oak, Michigan

Traverse City, Michigan

Hopkins, Minnesota

Minneapolis, Minnesota

Saint Paul, Minnesota

Silver Lake, Minnesota

North Walpole, New Hampshire

Cape May Court House, New Jersey

Bronx, New York

Honeoye Falls, New York

Lockport, New York

Fayetteville, North Carolina

Belfield, North Dakota

Akron, Ohio

Cincinnati, Ohio

Clyde, Ohio

Coshocton, Ohio

Toledo, Ohio

Oklahoma City, Oklahoma

Lake Oswego, Oregon

Portland, Oregon

Norristown, Pennsylvania

Providence, Rhode Island

West Warwick, Rhode Island

Quitzdorf am See, Sachsen

Aberdeen, South Dakota

Christiana, Tennessee

Hendersonville, Tennessee

Memphis, Tennessee

Murfreesboro, Tennessee

Fort Worth, Texas

Salt Lake City, Utah(2 reports)

Montpelier, Vermont

Evington, Virginia

Herndon, Virginia

Linden, Virginia

Manassas, Virginia

Arlington, Washington

Arlington Heights, Washington

Concrete, Washington

Fox Island, Washington

Kalama, Washington

Oso, Washington

Smokey Point, Washington

Appleton, Wisconsin

Ladysmith, Wisconsin

Madison, Wisconsin

Ranchester, Wyoming

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Gardeners' Notes:


On Jun 29, 2015, RSFGardener from Rancho Santa Fe, CA wrote:

A landscape architect chose Coral Bells for a mostly-shady spot at the front of our house. He chose poorly for this climate, I think. (San Diego/ North County) It's a pretty plant but every one of the 20+ plants died, one by one. One came back after the winter and died soon after.


On Apr 18, 2014, bobbieberecz from Concrete, WA wrote:

I'm so weary of this plant. I always fall in love with it in magazines, nurseries and other gardens. I buy it because it's listed for every shade garden in every periodical. I've tried it in bright shade, moist soil; dry shade; dappled shade with hand watering when dry; and heavier shade with a few hours of afternoon sun. I have good mulch, and loam/silt soil. IF the plant struggles through it's first season and actually hangs in there (barely) until the next spring, it's a fraction of the size and never (ever) produces a flower. I wish this plant would stop being listed as a "favorite" shade plant because my green thumb turns brown every time with it. After 20 years of trying, I'm throwing in the towel.


On Jun 13, 2012, l6blue from Coon Rapids, MN (Zone 4b) wrote:

I have several of these in various degrees of shade in my yard, and they all do well. They form beautiful full clumps. The plants become somewhat fuller with a little sun. The purple foliage forms a lovely contrast with the green of other plants, and the mounding form visiually grounds your landscape. The plants seem to benefit from occasional dead-heading.


On Jun 22, 2009, shadydame from North Walpole, NH (Zone 5a) wrote:

I purchased these plants by mail this spring, and they are doing extremely well, and even flowering! Coral Bells are a staple of my garden.


On Jun 3, 2007, Seandor from Springfield, MA (Zone 6a) wrote:

Planted this late last summer. WOW! Am I impressed! It is absolutely thriving in our front yard and looks spectacular with lamium "Purple Dragon" It has doubled its size and is sending up blossoms.

I wish I had planted this heuchera years ago :-)


On Mar 22, 2007, berrygirl from Braselton, GA (Zone 8a) wrote:

Plant Care
Benefits from deadheading. Watch for frost heaving - mulch can help. It keeps the mature crown in contact with the soil and keeps the soil moist in the summer as well. Must have good drainage over the winter, though, so don't over-do the overwintering mulching.


On Oct 23, 2004, SalmonMe from Springboro, OH (Zone 6a) wrote:

Beautiful foliage and low-maintenance care. Avoid planting in fall -- Heuchera may frost heave more readily if not established before cold weather. Plant in spring in well-draining soil. Consider covering with mulch for winter.


On Jul 28, 2004, tulip523 from Hackettstown, NJ (Zone 6a) wrote:

Although the huechera (plum pudding) is new to me besides its beauty I find it easy to take care of.

I am in zone six and my plant is on my porch, It does receive some sunlight but not direct for a few hours a day. It seems to thrive better in partial shade conditions.

I do plan on getting many varieties next spring. If any one has information like propagation etc. that would be great.