Crambe maritima. Sea kale.

Life-form & Growth Form:  

Hemicryptophyte. Herbaceous perennial. Little vegetative spread, the crown of the plant grows under the surface to produce multiple shoots.  

Flowering period: 

July to August.


Coastal shingle. Coastal dunes, strandlines, cliffs. Lowland.


Disturbance of shingle habitats by walkers. Illegal shingle extraction. Coastal squeeze caused by climate change and agricultural enclosure and improvement of uppermost shoreline. Historically also picked and used as a vegetable. Sea defence work and increasingly winter storms which have intensified in number and strength. 

Static distribution map:
For an interactive map follow this link to the BSBI webpage