The pistachio tree ( Pistacia vera ) a member of the Anacardiaceae family , ( the cashew family , which also admit mango and sumac ) is a small to medium tree diagram start in Persia . The Sir Herbert Beerbohm Tree grow seeds that are widely consumed as food for thought . It expand in the long spicy summertime and parky winters of U.S. Department of Agriculture industrial plant hardiness zones 8 through 10 .

The Pistacia vera Sir Herbert Beerbohm Tree is conceive to be   indigenous   to   Iran . It is wide   cultivated   from   Afghanistan   to the Mediterranean area and in   California . The   source   kernels can be consume smart or roast and are normally used in a potpourri of desserts , including   baklava ,   halvah , and   methamphetamine cream . They are also used for yellowish green colourise in confections . The seeds are high in   protein ,   fat ,   dietary fibre , and   vitamin B6 .

Mature pistachio tree Sir Herbert Beerbohm Tree typically grow to a height of 20 to 30 foundation ( 6 to 9 meters).The spread of the canopy is commonly similar to the height . However , through pruning or training , the spreading can be ensure or modified for easier harvest or space management in plantation . They have pinnate leave , which are compound with 10 - 20 leaflets that are oblong to lanceolate , and they turn a beautiful yellow in autumn .

The trunk of a Pistachio tree is broadly speaking upright and becomes more robust as the Sir Herbert Beerbohm Tree matures . In new trees , the trunk might be somewhat slender , but it thickens over meter . Pistachio trees have a trend to form a central leader in their youth , but many cultivar are rationalize to encourage a more open , spread form for better unaccented penetration and air circulation .

In the first few years , ontogeny might be slow as radical establish . Once established , they can increase in height by about 1 to 2 feet per yr until they reach their ripe size of it . Young barque tend to be legato and can have a grayish - green to brownish chromaticity . Over time , the barque becomes rocky , with deep furrows and rooftree . It can develop into a pattern of plates or scales .

Pistachio trees are dioecian , which think of that male and distaff flowers are borne on disjoined trees . This necessitates having both virile and female tree in an woodlet for successful pollination and yield set . Male flowers are borne on ament , which are long , lithe clusters . Each ament hold back numerous small , inconspicuous flowers that have stamens but no petals . They are a light-green - yellow or yellow - green .

Female flowers are less showy ; they are modest and have a more spiky coming into court due to the pistils . They have a reddish hue when they first emerge , which can darken to a burgundy colouration . Each distaff flower comprise primarily of a undivided pistil with a small ovary at the base , which will develop into the yield if pollinated . They do not have petal .

Pistachio trees blossom in the spring in March or April . This is before the leaves fully emerge . Pollination occurs via wind . The male catkins release pollen that is carried by the wind to the distaff flower . Typically , one male tree diagram is planted for every eight to twelve female tree to ensure adequate pollen dispersion . Some Farmer use hired hand - pollenation or mechanical blowers to distribute pollen if natural wind conditions are not prosperous or if pollenation rates need to be improve .

To ruin sleeping , Pistacia vera require more or less 850 hour of winter temperature below 45 degrees Fahrenheit . Although the tree require wintertime chilling , the rootstocks vary in their cold resistance .

Borne in clusters , the white   drupe   yield are 1.5 to 2 centimetre ( 0.6 to 0.8 in ) long and tend to split at one side without   discharging   the seed . The “ nut ” is a green kernel enclosed in a thin , tightly adhering , reddish skin . The single , satisfying kernels have a pleasing balmy resiny flavour .

Pistachio Sir Herbert Beerbohm Tree develop an extensive root organisation , which is particularly deep in well - drained filth . This recondite base organisation help them make it in ironical conditions but also make them less susceptible to being blow over by wind compared to Tree with more shallow base systems .

Pistachio trees can live and produce nuts for 50 to 100 years or even more with sound care . It use up about 5 - 8 year for a pistachio tree to begin producing nuts after planting . The trees unremarkably pass their peak production capacity around 10 - 15 years of age . They can stay productive for many decades , although the yield might decrease as the tree diagram ages .

harvest home in the United States and in Greece is often execute using equipment to shake the stone fruit off the tree . After hulling and drying , pistachio are sorted according to candid - mouth and closed in - oral cavity shell , then roast or process by special machine to produce pistachio core .

In 2022 , mankind output of pistachio nut was one million   tonnes , with the United States , Iran , and Turkey combined accounting for 88 % of the amount .

A pistachio tree diagram might be considered at the end of its life when it shows significant decline in health , reduced issue , or extensive structural damage that ca n’t be overcome with pruning or other interventions .

element Affecting Lifespan

Rejuvenation

Pistachio Tree Cultivation

Post - Harvest

Pests and Disease Management