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Carpobrotus edulis

Common name: Hottentot Fig Family: Aizoaceae
Author: (L.)L.Bolus. Botanical references: 200
Synonyms: Mesembryanthemum edule (L.)
Known Hazards: None known
Range: S. Africa - Cape Province. Naturalized in Britain[17].
Habitat: Sandy and rocky places by the sea[260]. Naturalized on cliffs and banks by the sea in &ndndndnd and S. Devon[17].
Edibility Rating (1-5): 2Medicinal Rating (1-5):0

Other Common Names:From various places around the Web, may not be correct. See below.
Common Hottentot Fig [P], Common Hottentot-fig [B],
Epithets:From a Dictionary of Botanical Epithets
edulis = edible
Systematics:From a USDA Plants Database
Order: Caryophyllales. Fig-marigold family
Noxious, Invasive and Injurious WeedsFrom USDA PLANTS database, Weeds Australia , DEFRA Injurious Weeds
Listed as noxious/invasive for: USA Invasive.

Physical Characteristics

Perennial growing to 0.1m by 1m . It is hardy to zone 8 and is frost tender. It is in flower from May to July, and the seeds ripen from August to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees. We rate it 2/5 for edibility and 0/5 for medicinal use.

The plant prefers light (sandy) soils, requires well-drained soil and can grow in nutritionally poor soil. The plant prefers acid, neutral and basic (alkaline) soils and can grow in saline soil. It cannot grow in the shade. It requires dry or moist soil and can tolerate drought. The plant can tolerate maritime exposure.

Habitats and Possible Locations

Cultivated Beds, By Walls, By South Wall, By West Wall, Ground Cover.

Edible Uses

Fruit Leaves.

Fruit - raw, cooked, dried for later use or made into pickles, chutney etc[1, 2, 3, 5, 7, 183]. There is very little flesh in the fruit and it must be fully ripe otherwise it is very astringent[K]. Mucilaginous and sweetly acid[183].
Leaves - raw or cooked[2, 173]. Succulent, they are eaten in salads and can also be used as a substitute for pickled cucumber[183]. We find them too mucilaginous to be enjoyable[K].

Medicinal Uses

Disclaimer

None known

Other Uses

Fire retardant Ground cover Soil stabilization Tannin.

Used in maritime areas to prevent soil erosion in sandy soils[188, 200]. Plants form a dense carpet and make an effective ground cover[208].
Can be grown as a fire barrier in areas subject to forest fires, it is moderately fire retardant[200].
The dried leaves contain about 19.4% tannin and the dry stems 14.2%[223]. Yields of 1700 kilos per hectare of cultivated plants have been achieved[223].

Cultivation details

Requires a well-drained sandy soil in a sunny position[1, 200]. Plants can be grown on dry walls or in the flower border[166]. Established plants are very drought resistant[200]. Very resistant to wind and salt spray[166]. Moderately fire-retardant[200].
Plants are not very frost resistant and can be killed by temperatures below about -2° c. They have naturalized themselves on cliffs along the coast of S. Britain but do not succeed inland unless grown in a sunny sheltered position[200].
A vigorous prostrate plant, rooting as it spreads. The flowers only open in the afternoon[200].

Propagation

Seed - surface sow March to June in a greenhouse. Lower night-time temperatures are beneficial. The seed usually germinates in 7 - 10 days at 23° c[138]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in a greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Cuttings at any time during the growing season. Allow the cutting to dry in the sun for a day or two then pot up in a very sandy mix. Very easy[K].

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

Web References

References for the family Aizoaceae.

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[2] Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972 ISBN 0-486-20459-6
Lots of entries, quite a lot of information in most entries and references.

[3] Simmons. A. E. Growing Unusual Fruit. David and Charles 1972 ISBN 0-7153-5531-7
A very readable book with information on about 100 species that can be grown in Britain (some in greenhouses) and details on how to grow and use them.

[5] Mabey. R. Food for Free. Collins 1974 ISBN 0-00-219060-5
Edible wild plants found in Britain. Fairly comprehensive, very few pictures and rather optimistic on the desirability of some of the plants.

[7] Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald 1984 ISBN 0-356-10541-5
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.

[17] Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press 1962
A very comprehensive flora, the standard reference book but it has no pictures.

[138] Bird. R. (Editor) Growing from Seed. Volume 3. Thompson and Morgan. 1989
Very readable magazine with lots of information on propagation.

[166] Taylor. J. The Milder Garden. Dent 1990
A good book on plants that you didn't know could be grown outdoors in Britain.

[173] Crowe. A. Native Edible Plants of New Zealand. Hodder and Stoughton 1990 ISBN 0-340-508302
A very well written and illustrated book based on the authors own experiments with living on a native diet.

[183] Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990 ISBN 0-9628087-0-9
Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.

[188] Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. 1990 ISBN 0-86318-386-7
Excellent range of photographs, some cultivation details but very little information on plant uses.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[208] Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons 1990 ISBN 0-460-12609-1
An excellent detailled book on the subject, very comprehensive.

[223] Rottsieper. E.H.W. Vegetable Tannins The Forestal Land, Timber and Railways Co. Ltd. 1946
A fairly detailed treatise on the major sources of vegetable tannins.

[260] Phillips. R. & Rix. M. Conservatory and Indoor Plants Volumes 1 & 2 Pan Books, London. 1998 ISBN 0-330-37376-5
Excellent photos of over 1,100 species and cultivars with habits and cultivation details plus a few plant uses. Many species are too tender for outdoors in Britain though there are many that can be grown outside.


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Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
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