perennial · design plant record

Epimedium × versicolor ‘Sulphureum’

Yellow barrenwort

A low spring-flowering carpet, with a spreading rather than permanently isolated habit.

Height at maturity
0.15–0.31 m (0.5–1 ft)
Spread at maturity
0.3–0.46 m (1–1.5 ft)
Light
Part shade / Shade
Moisture
Drier soil after establishment / Moist, draining soil
Source-reported USDA zones
5–9 · verify subzone and cultivar
Principal seasonal role
Spring, Summer, Autumn

Fit it to the site

Draining, moderately moist soil; tolerates drier conditions after establishment.

Avoid cold drying winds and severe root competition. The source prose gives 1–1.5 ft spread; its conflicting 1-inch minimum is not used.

Keep the care in the decision

Remove old foliage before flowers emerge if needed for display. Inspect expanding rhizomes and divide after flowering when necessary.

Origin & safety checks

Garden hybrid; local native status must not be inferred.

Toxicity not assessed here. A source’s historic uses are not consumption advice.

Check current invasive restrictions with your local plant-health or extension authority. For pets, use the exact botanical name in a veterinary toxicity reference; for potential ingestion or exposure, get appropriate professional advice rather than relying on a design guide.

Factual source · checked 8 October 2026

NC State Extension Gardener Plant Toolbox: Epimedium × versicolor ‘Sulphureum’

Ranges are rounded metric conversions of the source's dimensions. Growth varies with cultivar and conditions. Linked source photographs can help verify identity; our concept garden images cannot.

See this plant in a measured design

These layouts show the plant’s allocated space and neighbours. Each plan still needs a local site check.