In 1892 a handful of Persian walnut seedling trees were planted in Napa County that were purchased from Felix Gillet, California nurseryman who brought many valuable plants from France. John Hartley purchased the farm with those walnut seedlings in 1909. By that time the seedlings were 17-year-old trees bearing large crops of walnuts. Pleased with the consistent quality and quantity of the trees and their crops, Hartley decided to exhibit the walnuts in the Panama Pacific International Exposition held in San Francisco in 1915. “The judges awarded a medal to Mr. and Mrs. Hartley for the exceptional quality of this variety. The Hartley walnut is a thin shelled walnut, high quality with sweet kernel. Most folks agree this is the best walnut for eating fresh. Consistent, dependable variety making it a long sought after nut in California. Less susceptible to coddling moth and blight. Hartley walnut is an earlier blooming variety, so plant where late frost is not a perennial concern.
Growing Hartley Walnut
USDA Zone: 6, 7, 8, 9,10
Harvest Period:Very Late
Bloom Period:Very Late
Pollination Requirement: Partially Self-Fertile
Storage:3 Months or More
Years to Bear:2-5 years
Recommended Spacing:25-40 ft.
Mature Size:30-60 ft.
Water Requirements:12-15 gallons per week May through Sept.
Shape when Shipped:Whip (no branching)
Size when shipped: Our trees range in height from 4-8 ft. in our field and trimmed to 4 to 5 ft. when shipped. Our young two year trees are most often feathered (side limbs). The trees diameter (caliper) is often 1/2 to 3/4 inch; *As noted by University of California Scientists and other qualified professionals the most successful treesoften have caliper from 1/2" to 5/8" and usually establish faster than smaller and larger planting stock.
Basic idea for Pruning:Most fruit trees should be pruned in frost-free periods mid to late winter. (apricots best after bud break) Remove most vertical branches and shorten side branches. Fruiting wood is best on horizontal to 45 degree limbs.
Shipping Note: Our fruit trees and berries are delivered to you bareroot during their winter dormancy from January through May depending on USDA zone. Trees are shipped with your invoice and helpful planting directions. There is no minimum quantity required but shipping rate for an individual tree is expensive since UPS/Fed Ex charge a dimensional weight and an additional handling fee to ship a tree. You'll find it's cost effective to consider a handful of trees,vines or our helpful tree starter kits.