Epimedium, Bishop's Hat, Bishop's Mitre, Red Barrenwort

Epimediumalpinum

Family
Berberidaceae (bear-ber-id-AY-see-ee)
Genus
Epimedium (ep-ih-MEE-dee-um)
Species
alpinum (AL-pin-um)
Synonym
Sun Exposure
Light Shade
Foliage
Deciduous
Smooth
Height
6-12 in. (15-30 cm)
Spacing
12-15 in. (30-38 cm)
Hardiness
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)
Bloom Color
Red
Pale Yellow
Bloom Time
Mid Spring
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Grow outdoors year-round in hardiness zone
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

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

Machesney Park, Illinois

Washington, Illinois

Anderson, Indiana

Iowa City, Iowa

Bangor, Maine

Fallston, Maryland

Boston, Massachusetts

Dracut, Massachusetts

Jamaica Plain, Massachusetts

Mashpee, Massachusetts

Uxbridge, Massachusetts

Warren, Michigan

Minneapolis, Minnesota

Saint Paul, Minnesota

Wayzata, Minnesota

Brookline, New Hampshire

Bolton Landing, New York

Boone, North Carolina

Galena, Ohio

Glouster, Ohio

Portland, Oregon

Norristown, Pennsylvania

Charlestown, Rhode Island

Leesburg, Virginia

Vancouver, Washington

Augusta, Wisconsin

Madison, Wisconsin

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Gardener's Notes:

4
positives
3
neutrals
0
negative
Sort By:
Sort By:
C
ROSLINDALE, MA | December 2015 | neutral

Superb foliage that lasts all season even in dry shade.

The flower display doesn't last long, as a second set of leaves e...Read More

I
I
Iowa City, IA (Zone 5a) | June 2013 | positive

This is its third year in a very shady, sheltered, moist spot. It has taken off, and is shooting out new red-rimmed foliage like crazy. B...Read More

M
Coon Rapids, MN (Zone 4a) | June 2008 | positive

One of the most common barrenwort sold in Minnesota - 'Lilafee' comes in second with any others tie for a far 3rd place. Most companies ...Read More

P
Boston, MA | June 2006 | positive

Grown epimediums for many years. Look best in moist (free draining) organic soil in partial shade to shade. Look great during the growing...Read More

I
I
boone, NC (Zone 5b) | April 2006 | positive

I was surprized to see others list this plant at "neutral." It is one of my very favorites in our woodland garden. The foliage is outst...Read More

P
Deal, NJ (Zone 7a) | May 2005 | neutral

Typical heart shaped epimedium foliage with very small (smaller than most epimediums) pink and yellow flowers..... Okay if you like a d...Read More

B
B
Baa
| January 2004 | neutral

A deciduous, rhizomatous perennial plant which is a hybrid of E. alpinum x E. grandiflorum.

Has 2 ternate, mid green leave...Read More

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