DUNSTAN CHESTNUT TREE- 3-4 Feet Tall Tree Size: 2 Year Old Tree USDA Hardiness Zone: 5 - 9, Plant 2 Dunstan Chestnuts for Pollination Ripening Date: Late September - Early October Mature trees produce from 50 - 100 pounds Dunstan Chestnut Tree: The highest blight resistance of any chestnut tree