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A picture of a Rough comfrey

Rough comfrey

Symphytum asperum

Also known as

Prickly comfrey, Comfrey

Partial Shade
Moderate watering
Frost Hardy

H5

RHS hardiness

-15°C

Minimum temperature

Expected size

Height
Spread

1.5m

Max

60cm

1.1m

Min

40cm

Flowering

More images of Rough comfrey

A photo of Rough comfrey
A photo of Rough comfrey
A photo of Rough comfrey

Rough comfrey Overview

This is a thick rooted perennial, with leaves which are oval, heart-shaped or oblong covered with stiff prickly hairs. The flower stems will grow to about 1.5m tall. The flowers will bloom in red, lilac or blue, and are about 12mm long.

How to propagate Rough comfrey

Cuttings

You can propagate from seeds or cuttings.

Seed

Division

By division.

Other uses of Rough comfrey

Suitable for wild gardens. Use to make liquid manure.