The Pistachio tree combo includes the Peter's Pistachio tree (male) and the Kerman's Pistachio tree (female, grafted), ensuring pollination for pistachio production. The Peter's Pistachio tree serves as the pollinator for the Kerman's Pistachio tree, which is a highly productive cultivar of pistachio trees. With its high success rate, the Kerman's Pistachio tree is the most widely grown cultivar of pistachio trees. These trees thrive in well-drained soil and require partial to full sunlight for optimal growth. (USDA Zones 7-10)