The pistachio is a small, nut bearing tree. Drought resistant and tolerant of hot temperatures, they grow well in areas that are inhospitable to most other food crops. Under favorable conditions, a pistachio tree can live and produce nuts for centuries.
History
Modern pistachio nuts were initially grown in western Asia. Archaeological evidence suggests they have been used as a food source in this area since 7000 BC.
Biology
Pistachios are dioecious, which means there are separate male and female trees. For a successful cultivation, a farmer must plant one male tree for every 8 to 12 .
Productivity
A fully mature pistachio tree will produce an average of 25,000 pistachio nuts each year.
Harvest
The pistachio shell undergoes an observable transformation when it is ready to be picked. The shell turns from green to reddish yellow and partially splits open.
Features
The shell of the pistachio is tan in color; however, the shells are often dyed green or red. This was originally done to conceal any discoloration that occurred as a result of being picked by hand.
Fun Fact
The split shell of the pistachio allows vendors to salt and roast the nuts while leaving the shell on, which is the most popular way to enjoy this snack.
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