Epimedium x rubrum (hybrid red barrenwort) — Spreading branched

Overview

Epimedium x rubrum is a spreading branched herbaceous perennial in the genus Epimedium, part of the Berberidaceae family, with deciduous foliage. It typically grows around 0.1-0.5 metres tall and 0.1-0.5 metres wide, reaching full size in around 2-5 years. Epimedium x rubrum grows best in partial shade, and tolerates most soils and acid and neutral pH. Its UK hardiness is rated H5. Suggested uses include groundcover, woodland garden and shade garden.

About

Epimedium x rubrum, known as hybrid red barrenwort, is a spreading branched herbaceous perennial in the Berberidaceae family. This deciduous plant grows to between 0.1 and 0.5 metres in height and spread, reaching full size within 2 to 5 years. It thrives in partial shade with a sheltered aspect, including north, west, or east-facing positions. Epimedium x rubrum prefers moist but well-drained soil, tolerating chalk, loam, or sand with acid to neutral pH. It offers seasonal interest in spring, autumn, and winter.

About the genus

Epimedium, also known as barrenwort, bishop's hat, fairy wings, horny goat weed, or yin yang huo, is a genus of flowering plants in the family Berberidaceae. The majority of the species are endemic to China, with smaller numbers elsewhere in Asia and a few in the Mediterranean region.

Wikipedia contributors, "Epimedium", CC BY-SA 4.0 — Epimedium

Growing conditions

Best soil and position for Epimedium

Sunlight: Partial shade
Soil type: Chalk, Loam, Sand
Soil pH: Acid, Neutral
Soil moisture: Moist but well-drained
Aspect: North-facing, West-facing, East-facing
Exposure: Sheltered
UK hardiness: H5

Plant details

Epimedium x rubrum size, habit and characteristics

Plant type: Herbaceous Perennial
Habit: Spreading branched
Foliage: Deciduous
Height: 0.1-0.5 metres
Spread: 0.1-0.5 metres
Time to full height: 2-5 years
Suggested uses: Groundcover, Woodland garden, Shade garden

Care notes

Pruning and caring for Epimedium x rubrum

Cultivation: Prefers partial shade and moist, well-drained soil. Avoid waterlogged conditions. Mulch in winter to protect roots.
Pruning: Cut back old foliage in late winter or early spring before new growth emerges.
Propagation: Division in spring or autumn; seed propagation is possible but slow.
Pest resistance: Vine weevil
Disease resistance: Mosaic virus diseases, Fungal leaf spots

Frequently asked questions

How do I grow Epimedium x rubrum?

Prefers partial shade and moist, well-drained soil. Avoid waterlogged conditions. Mulch in winter to protect roots.

Where is the best place to plant Epimedium x rubrum?

Epimedium x rubrum prefers partial shade. It suits sheltered positions.

What soil does Epimedium x rubrum need?

Epimedium x rubrum is adaptable and grows happily in most soil types, including chalk, loam and sand. It prefers acid and neutral soil. Aim for soil that stays moist but well-drained.

How do I prune Epimedium x rubrum?

Cut back old foliage in late winter or early spring before new growth emerges.

How big does Epimedium x rubrum grow?

Epimedium x rubrum reaches a height of 0.1-0.5 metres and a spread of 0.1-0.5 metres. It takes around 2-5 years to reach full size.

Is Epimedium x rubrum hardy in the UK?

Epimedium x rubrum has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.