A picture of a Greater Sea Kale

Greater Sea Kale

Crambe cordifolia

Also known as

Colewort, Flowering Sea Kale, Heart-Leaved Colewort, Crambe, Heartleaf

Full Sun
Advanced care
Light watering
Frost Hardy

H5

RHS hardiness

-15°C

Minimum temperature

Expected size

Height
Spread

2.5m

Max

1.5m

1.5m

Min

1m

5 years to reach maturity

Flowering

  • spring
  • summer
  • autumn
  • winter

This plant has no fragrance

More images of Greater Sea Kale

A photo of Greater Sea Kale
A photo of Greater Sea Kale

Greater Sea Kale Overview

This is a clump-forming perennial mound. It will produce very large glossy dark green crenulate, toothed leaves which are followed by profuse clusters of tiny white flowers in late spring. The flower stems grow to 1.5m tall making this a garden attraction. It has very deep roots which will produce many offsets.

Common problems with Greater Sea Kale

How to propagate Greater Sea Kale

Division

Divide the roots.

Seed

Seeds in spring or autumn.

Special features of Greater Sea Kale

Attractive flowers

Other uses of Greater Sea Kale

Border, ornamental Summer interest.