Enter your ZIP code to identify your USDA Cold Hardiness Zone
The USDA hardiness zones offer a guide to varities that will grow well in certain climates. Each zone
corresponds to the minimum winter temperatures experienced in a given area. For best results, make
that your hariness zone lies within the zone compatibility of the variety that you are
Hartley Walnut requires a pollenizer. You must plant one of
trees nearby (within about 50') for the tree to produce a crop of fruit.
Juglans regia 'Hartley'
Hartley is a consistent producer with large, thin-shelled, well-sealed nuts and light-colored flavorful meats. Discovered by Mr. and Mrs. John Hartley of Napa in 1909. the Hartley has unknown parentage but rose to become one of the most popular planted commercial walnuts through the mid 1900s. The tree is medium to large and moderately spreading. A bit earlier than the popular Franquette walnut, it does share some of its hardiness. The Scharsch Franquette and the Hartley work well together as pollinators.
30' to 4o feet high, with a 20' to '30 foot spread
Plant 30' away from other trees and buildings
Walnuts prefer deep, rich, fertile, well-drained soil. Walnuts have deep tap roots and do not do well at all planted in containers. Water regularly, at least weekly, during the first year. Keep the soil evenly moist, but not wet. Walnut trees should be left to grow naturally without pruning. Trees can grow to 100' and live for 75 years. A single walnut tree can self-fertilize, but production increases when planted with other walnut trees.