Choose a country to see content specific to your location

A picture of a Prickly rhubarb

Prickly rhubarb

Gunnera spp.

Full Sun
Moderate watering
Half-hardy

10a

USDA zone

-1°C

Minimum temperature

Expected size

Height
Spread

Max

Min

Flowering

  • spring
  • summer
  • autumn
  • winter

More images of Prickly rhubarb

A photo of Prickly rhubarb
A photo of Prickly rhubarb
A photo of Prickly rhubarb
A photo of Prickly rhubarb
A photo of Prickly rhubarb

Prickly rhubarb Overview

Genus with around 70 rhizomatous perennials with impressive foliage. Some species have a clumping growth habit and these tend to have very large leaves, whereas other species have smaller leaves and tend to grow in a mat-forming manner. Foliage is rounded to oval to heart-shaped and normally strongly lobed and toothed at the edges. These are often placed by water edges and can provide architectural structure to a garden. Some species are favoured for their small green-yellow flowers, produced abundantly on thick, brushy spikes.

Common problems with Prickly rhubarb

How to propagate Prickly rhubarb

Seed

You can propagate by seeds in the autumn or spring.

Division

The small species by division in the spring.

Other uses of Prickly rhubarb

Grown for their foliage, flowers and fruits.