Care of the shrub Frangula californica or Coffeeberry |
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The genus Frangula, family Rhamnaceae, includes about 35 species of shrubs and small trees distributed throughout the Northern Hemisphere. Some species are: Frangula californica, Frangula rubra, Frangula alnus, Frangula azorica, Frangula caroliniana. Common names: Coffeeberry, California Buckthorn. Scientific synonym: Rhamnus californica. This species is native to western North America. They are compact evergreen shrubs with reddish branches that reach 5 meters (16.4 feet) in height. The oval, leathery leaves are dark green with curved margins. The flowers are small and greenish white but not decorative. They bloom from mid spring to early summer. The decorative fruits, similar to those of the coffee plant, are first green, then red and finally black (they are toxic by ingestion). They are used on edges, to form hedges, in bush groups, on dry and sunny slopes and as isolated specimens. They are ideal for coastal gardens. Frangula californica grows in full sun and semi-shade exposures. They resist frost down to -15 ºC (5 ºF). They prefer well-drained sandy soil although they will grow in almost all types of soil. Planting is done in early spring. Always water moderately, waiting for the soil to dry completely. In summer it is enough to water every 15 days. They resist drought very well. They do not need fertilizers. Prune lightly in late winter to maintain a compact habit. They are plants resistant to the usual pests and diseases. They are propagated from seeds sown in spring and by cuttings in autumn or spring. |
Images of the shrub Frangula californica or Coffeeberry |
 Frangula californica  Frangula californica  Frangula californica |