Cooke Giant Sweet walnut produces immense nuts that are oval to round, medium-textured with a good seal and a strong yet easily removed shell. The remarkably large, plump kernels are light and make up over half of the total weight. Cooke Giant Sweet walnut is a relatively small tree, grows to about 40 ft. Produces heavy crops and begins to bear about 2-3 years after planting. Bears on lateral buds, not just terminals. 600 hours chill. Self-fruitful.
Growing Cooke Giant Walnut
USDA Zone: 6, 7, 8, 9,10
Heirloom: Yes
Harvest Period: Very Late
Bloom Period: Very Late
Pollination Requirement: Self-Fertile
Origin Date: 1950`s
Storage: 3 Months or More
Rootstock: Black Walnut
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.
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Size of tree
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 trees often have caliper from 1/2" to 5/8" and usually establish faster than smaller and larger planting stock. .
Pruning tip
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. Learn more...
Shipping information
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.
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