Walnuts are fast-growing trees with broad canopies that can reach 18 m in width and 30 m in height. It is a light-demanding plant that requires full sun to thrive. It takes five to seven years for a walnut sapling to mature into a harvestable adult tree once it gets planted.
Walnuts, either fresh or dried, shelled, were the 1443rd most traded product in the world in 2019, with a total trade value of $1.72 billion. Walnuts, fresh or dried, shelled exports fell by -6.31 percent between 2018 and 2019, from $1.84 billion to $1.72 billion. Walnut trade, fresh or dried, shelled, accounts for 0.0095 percent of total world trade. Turkey has exported $16 million worth of walnuts between 2018 and 2019.