Pistacia vera
Family: Anacardiaceae

The edible pistachio grows on a deciduous tree 8-10 m (26-33 ft) high. Native to western Asia and Iran, it is widely cultivated in the Mediterranean and western US and other regions with similar climates. Male and female flowers are borne on separate trees, so trees of both sexes are needed to produce nuts. Trees bear nuts after about five years. Many have a biennial cropping habit: they bear a very heavy crop one year and a very light one the next. Nuts are harvested in autumn. The nut is eaten raw or salted. It is also used in confectionery and to flavor ice cream.

Cultivation

These trees can be grown from seed, but better results come from trees that have been budded with selected, heavy-bearing varieties. They are usually planted in winter while they are dormant. They need well-drained soil, preferably enriched with organic matter. Apply complete plant food in spring and again in late summer. Prune only to remove any weak growth or to head back very vigorous growth. Trees produce flowers, and therefore nuts, on the previous season's growth.

Climate

Warmest parts of zone 9. The ideal climate has hot summers and cool winters.