- Name: Pistachio Tree - Scientific Name: Pistacia Vera - Color: Red Flowers / Yellow - Red Pistachios - Plant Seeds: Fall Sow Seeds Or Cold Stratify - Bloom Time: Spring - Harvest: Fall - Hardiness Zone: 7 - 11 - Plant Height: 20 - 30' - Plant Spacing: 20' - Light Requirements: Sun - Soil & Water Preferences: Average - Dry - Quantity: 5 Seeds - Other: The Pistachio Tree Is The Source Of The Incredibly Popular Edible Pistachio Nut. Pistacia Vera Is Native To Parts Of Asia & The Middle East, But Is Now Grown Commercially In Many Parts Of The World. The Trees Are Slow Growing, & Typically Only Reach 20' At Most In Cultivation. This Desert Plant Tolerates Drought Well, & Enjoys Hot Sunny Conditions.