Do you need 2 chestnut trees?

Online Answer
You must plant two trees to provide the necessary cross-pollination, so, unless your neighbor has a tree that's a seedling or is of a different variety, always plant two different varieties..
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The first backcrossed American chestnut tree, called "Clapper", survived blight for 25 years, and grafts of the tree have been used by The American Chestnut Foundation since 1983..
800 yearsThe only way you can be sure of getting abundant, large-sized nuts is if you water the trees regularly throughout the growing season. Most chestnut tree types only begin to produce nuts after they are three to 7 years old. Still, keep in mind that some chestnut tree types can live up to 800 years.
The nourishing pollen and sweet nectar of magnolia trees supports pollinators year round. However pollinators aren't the only ones that love magnolias. Known for their vibrant blooms, fruit flies, leafhoppers and more are known to visit these trees, too.
five years"Pure" American chestnut seeds are also available to members on a limited basis. These trees are not blight-resistant, but they are fun to grow and can live over five years..
Ideal spacing for nut production is 35-40' apart. Chestnuts require minimal pruning. Light pruning in early years to form a strong central leader structure. Do not fertilize at planting..