Disphyma crassifolium (Purple Dewplant)


Summary Information


This procumbent, succulent, semi-woody perennial is often grown in gardens in mild, coastal areas and has become well naturalised on walls, cliffs and sandy places near the sea. In Jersey, it also grows under conifers and in a salt marsh. Elsewhere, it occurs as a wool shoddy casual. Although viable seed is produced, reproduction in Britain is from the rooting of detached stem fragments. Lowland.



World Distribution

Native of Cape Province, S. Africa; similar (possibly conspecific) taxa occur in Australasia.


Photos Information


Habitats Information

Broad Habitats

Boundary and linear features (eg hedges, roadsides, walls)
Supralittoral rock (does not include maritime grassland)
Supralittoral sediment (strandlines, shingle, coastal dunes)

Light (Ellenberg): 9 Information

Moisture (Ellenberg): 3 Information

Reaction (Ellenberg): 4 Information

Nitrogen (Ellenberg): 5 Information

Salt Tolerance (Ellenberg): 3 Information

January Mean Temperature (Celsius): 6 Information

July Mean Temperature (Celsius): 16.1 Information

Annual Precipitation (mm): 898 Information

Life Form

Life Form Information

Height (cm): 9

Perennation - primary


Perennation - secondary

Life Form - primary


Life Form - secondary



Clonality - primary

Extensively creeping and rooting at nodes

Clonality - secondary


Distribution Information

Count of 10km squares in Great Britain: 20

Count of 10km squares in Ireland: 0

Count of 10km squares in the Channel Isles: 3

Conservation Status

Conservation Status Information

Plantatt Conservation Status

Other Accounts

Other Accounts Information


References Information

PLANTATT - Attributes of British and Irish plants. (.zip 1455KB) This dataset was compiled and published in 2004, and last updated in November 2008. Download includes an Excel spreadsheet of the attributes, and a PDF explaining the background and nomenclature. Note that the PDF version is the booklet as published, whereas the Excel spreadsheet incorporates subsequent corrections.
A hardcopy can be purchased from the Centre for Ecology and Hydrology.

Atlas text references

Preston CD, Sell PD.  1989.  The Aizoaceae naturalised in the British Isles. Watsonia. 17:217-245.