ROYAL APRICOT TREE - 2 Year Old, 4-5 Feet Tall Tree Size: 2 year old tree that is 4-5 feet tall Estimated Chilling Requirements (Below 45): 400-500 hours USDA Hardiness Zone: 4-8 Freestone Ripening Date: Mid June Root Stock: Nemaguard & Lovell Spacing: Plant trees 15-20 feet apart Flavor of fruit: Apricots