The trees will begin to produce some nuts three or four years after planting. Significant production can be achieved in six or eight years. Good production will begin in the ninth or tenth year. Trees can be productive for 100 years or more.
Walnuts have particular pollination, nutrient and pest management requirements if they are to produce abundant crops. Remember that many nut cultivars don't start producing nuts until they are between 12 and 15 years old. After a period of 5 to 10 years, during which the central leader of the walnut tree is encouraged to grow in a straight line, the tree enters its period of precocity. Now the tree will start producing pecan nuts for the harvest.
If its location remains sunny and its enemies are controlled, the tree will continue to produce for the next 50 to 60 years. Some varieties alternate between high-yielding years and low-yielding years. Other varieties obtain a certain production, which continues throughout most of their productive years. If you decide to grow nut trees from seed, use fresh walnuts harvested in the fall from a local source to ensure that your choice suits your climate.
If you already have pecan trees, you may notice small seedlings growing around them from fallen walnuts that germinate. So when a nut tree “produces (or bears) fruit, it actually produces the nuts that we commonly call walnuts. A notable fact about the walnut tree is that the pecan nut is botanically classified as a drupe, which is a type of fruit. Many people ask us how long it takes for a walnut tree to produce quality nuts and how to increase the production of pecan nuts per tree.