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Barrenwort

Epimedium (ep-ih-MEE-dee-um pair-RAL-kee-kum)

Family: Berberidaceae Unknown Herbaceous (1-3 ft)

Barrenwort is an artificial cross of Epimedium peralderianum x Epimedium pinnatum subsp. colchium . It is a clump-forming, rhizomatous, herbaceous perennial, evergreen ground cover in the barberry family (Berberidaceae). It grows 0.5 to 1 foot tall and from 1 to 1.5 feet wide and has clusters of buttery-yellow blooms in the spring that appear on green leafless stems. Its heart-shaped, glossy, dark evergreen foliage is bronze-mottled in spring and fall, transitioning to green in summer. It forms a dense ground cover that will help block weed growth. This hybrid is more hardy and vigorous than its parent, E. peralderianum. It prefers partial to full shade and does well in a variety of moist, well-drained soils. It is drought-tolerant once established. Before flowering in the spring, remove the dead leaves. The plant may be propagated by division in the fall or after blooming. The origin of its common names, bishop's hat and bishop's mitre, derives from the resemblance of its flowers to a square cap with 4 peaks worn by clergy, which is known as a biretta. The common name barrenwort references the root extract of this plant, which was thought to prevent conception. Use as an attractive evergreen groundcover in heavily shaded areas, including shady borders, along walkways, naturalized areas, woodland areas, or under trees. Insects, Diseases, and Other Plant Problems: Has no serious insect or disease problems. Occasionally, it may be visited by vine weevils, snails, or slugs. The mosaic virus may be transmitted to this plant by aphids. Monitor for leaf spot, powdery mildew, and root rot.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 55 attributes.

How it fits the guild

Guild layer 4 - Herbaceous (1-3 ft) Optimal soil pH Acid (<6.0); Neutral (6.0-8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Heuchera villosa Sedum lineare x Heucherella

Full plant profile

Growing Conditions
Plant type
Ground Cover; Herbaceous Perennial
Life cycle
Perennial
USDA zones
4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Light
Dappled Sunlight (Shade through upper canopy all day) | Deep shade (Less than 2 hours to no direct sunlight) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
Clay; High Organic Matter; Loam (Silt); Sand; Shallow Rocky
Soil pH
Acid (<6.0); Neutral (6.0-8.0)
Soil drainage
Good Drainage | Moist
Available space
12 inches-3 feet
NC region
Coastal; Mountains; Piedmont
Mature size
Height: 0 ft. 6 in. - 1 ft. 0 in. | Width: 1 ft. 0 in. - 1 ft. 6 in.
Growth rate
Medium
Maintenance
Low
Canopy layer
4 - Herbaceous (1-3 ft)
Form & Appearance
Habit / form
Clumping; Mounding
Texture
Medium
Foliage
Broadleaf Evergreen
Leaf color
Brown/Copper; Gold/Yellow; Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf shape
Cordate; Ovate
Leaf margin
Undulate
Leaf feel
Glossy
Leaf value
Long-lasting; Showy
Leaf size
1-3 inches long, 1-3 inches wide
Hairs present
No
Leaf detail
The leaves are medium green, mottled with bronze, glossy, heart-shaped leaflets, measuring up to 3 inches long. Bronze marbling of the leaves occurs in spring and fall. Its margins are slightly wavy and spiny. Its new leaves are green and marbled with bronze in the spring.
Fall color
Brown/Copper
Flower color
Gold/Yellow
Flower value
Showy
Flower form
Panicle
Flower shape
Star
Flower size
< 1 inch
Flower detail
The flowers appear in clusters of bright yellow 4-petaled blooms on thin stems, growing slightly above the foliage. Each bloom is up to 1 inch wide. Blooming occurs in the spring.
Bloom time
Spring
Stem color
Green
Stem detail
The stems are thin, wiry, and green.
Wildlife & Ecology
Native status
Unknown
Wildlife value
Atracts bees and other pollinators.
Attracts
Bees; Pollinators
Play value
Attractive Flowers; Attracts Pollinators; Colorful; Easy to Grow
Food & Medicine

Uses (ethnobotany)

The parent plant has been used in Asian herbal medicine.

Landscape Use
Landscape location
Naturalized Area; Slope/Bank; Walkways; Woodland
Landscape theme
Drought Tolerant Garden; Rock Garden
Design feature
Border; Mass Planting; Small groups
Garden tags
#yellow flowers #groundcover #evergreen #clumping #rabbit resistant #partial shade #mottled leaves #rock garden #rhizomatous #herbaceous perennial #border front #summer interest #fall interest #interesting leaves #spring interest #spring flowers #evergreen groundcover #deer resistant #full shade
Problems & Resistance
Resistant to
Deer; Drought; Dry Soil; Heavy Shade; Rabbits
Particularly resistant to
Drought tolerant
Propagation
Division

Planted at Hunnicutt

Nobody’s planted this one yet.