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Coral Bells, Alumroot, Coralbells, Alum Root 'Marmalade'


Family: Saxifragaceae (saks-ih-frag-AY-see-ee) (Info)
Genus: Heuchera (HEW-ker-a) (Info)
Cultivar: Marmalade
Additional cultivar information:(PP15945)
Hybridized by Egger
Registered or introduced: 2004
» View all varieties of Heucheras
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6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


15-18 in. (38-45 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)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade

Bloom Color:


Bloom Time:

Late Spring/Early Summer

Mid Summer


Grown for foliage


Other details:

Unknown - Tell us

Soil pH requirements:

5.6 to 6.0 (acidic)

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

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:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Can be grown as an annual


This plant has been said to grow in the following regions:

Kenai, Alaska

Berkeley, California

Richmond, California

Salinas, California

Yorba Linda, California

Stamford, Connecticut

Waterbury, Connecticut

Plainfield, Illinois

Sioux City, Iowa

Hebron, Kentucky

East Longmeadow, Massachusetts

Bay City, Michigan

Royal Oak, Michigan

Saginaw, Michigan

Silver Lake, Minnesota

Lincoln, Nebraska

Angola, New York

Belmont, North Carolina

Clyde, Ohio

Coshocton, Ohio

Portland, Oregon

Norristown, Pennsylvania

Lexington, Virginia

Bellevue, Washington (2 reports)

Kalama, Washington

Appleton, Wisconsin

Ellsworth, Wisconsin

Minocqua, Wisconsin

show all

Gardeners' Notes:


On Oct 11, 2013, trustmissy from Bay City, MI wrote:

My plant has very poor form. The leaves are large and just lay there.


On Jun 9, 2012, darylmitchell from Saskatoon, SK (Zone 3a) wrote:

Nice colour, but weakest of the Coral Bells I planted. Emergence was slow in the spring and lags behind two others I planted ("Dolce Licorice" and "Dolce Key Lime Pie"). By the second year, it was dead.


On Jan 15, 2011, edder from Deer Lodge, MT (Zone 4a) wrote:

Product Profile:


On May 5, 2010, Aphthona from Fargo, ND (Zone 4a) wrote:

Looked great for a hear and a half. Failed to emerge this spring. ND


On Nov 24, 2009, stormyla from Norristown, PA (Zone 6b) wrote:

I find this to be a very hardy Heuchera, although a slow grower. Mine is planted in a bed that receives a fair amount of late afternoon sun.


On May 7, 2006, weatherguesser from Battle Ground, WA (Zone 8b) wrote:

I planted two of these in a very shady spot beneath my big Japanese Maple back in March and they have thrived. One is now beginning to bloom. Perhaps it's just due to aggressive countermeasures, but they haven't yet been bothered by the snails and slugs that decimated the hostas that were previously in the same spot. These are very pretty plants and easy to grow in my area.


On Nov 5, 2005, tyshee from Kenai, AK wrote:

This is the weakest of my coral bells. It seems to struggle for survival each year and doesn't grow as large as the others. I think I would say it is marginally hardy in my zone.


On Sep 11, 2005, celonghurst from Qualicum Beach,
Canada wrote:

Planted one this spring and have already divided it into 3 quite large plants.Very vigorous grower.Also planted Amber Waves in the same spot(east wall) and while colouration is very similar Marmalade has slightly more crinkly leaves and is a MUCH faster grower.