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PRE — Plant Risk Evaluator

Rhamnus alaternus

by Ron Vanderhoff, Orange County CNPS
Common Name(s)
evergreen buckthorn, Mediterranean buckthorn, Italian buckthorn, blow-fly-bush, buckthorn
Synonym(s)
Alaternus angustifolia, Alaternus balearica, Alaternus glabra, Alaternus hispanicus, Alaternus latifolia, Alaternus phylica, Alaternus rotundifolia, Alaternus variegata, Rhamnus clusii, Rhamnus myrtifolia

Is this plant a cultivar?  No

Life History:  Perennial

Growth Form:  shrub

This plant is native to scrublands below 2,300 feet in elevation in the Mediterranean extending from Portugal on the west across southern Spain, France, Italy to Albania and Greece to as far north as the Crimean shores of the Black Sea and south onto islands in the Mediterranean, including Corsica, Sicily, Sardinia and the Balearic Islands. 
The name for the genus Rhamnus derives from the ancient Greek 'rabdos', meaning a "stick" in reference to the presence a woody spine on the end of each twig for certain species.
Africa: Algeria; Libya; Morocco; Tunisia
Asia: Cyprus; Israel; Turkey
Europe: Ukraine - Krym; Albania; Former Yugoslavia; Greece; Italy; France; Portugal; Spain 

A good evergreen shrub for a hedge or screening that has nice dense dark green glossy foliage throughout the year. The small spring-blooming greenish-yellow flowers produce reddish fruit that ages to a dark purple color. In nature this plant is quite variable but this cutting grown selection is very upright growing, reaching to 12 to 15 feet tall by about half the width. Full sun to part shade in just about any soil where it can tolerate heat, wind and drought but also tolerates regular water. Hardy to 10-15 ° F. This plant is excellent for making a fast fairly narrow screen as it can grow 2 to 3 feet in its first few years and can also be trained as a small upright tree. It is a particularly useful plant for hedges that go in and out of shade and full sun as it is tolerant of both and its narrow habit and limited height makes it a great choice along pathways and in areas that a limited height is needed. It also shears well if an even shorter height or width is desired.

Occasional garden escape

External Resources
GBIF Species Page
Tropicos Species Page
Tropicos
ARS GRIN
San Marcos Growers
Jepson Manual
Dave's Garden
Calflora
Plant Lust
California Flora Nursery
Declared Plant Policy
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Images

by Hectonichus
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by Isidre blanc
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by Eric Wrubel
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by Ron Vanderhoff, Orange County CNPS
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by Ron Vanderhoff, Orange County CNPS
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