Walnut trees are relatively undemanding, especially when it comes to fertilization. However, you should feed it once a year.
Basically, the walnut tree does not need much to thrive and develop fruit over time. However, this only applies if the location already has sufficient nutrients and the walnut tree lacks just a few.
You should still pay attention to a small amount of maintenance, such as fertilization. We'll tell you how.
Sometimes a little is more
Liquid fertilizer, compound fertilizer, organic fertilizer - you hardly need to concern yourself with these options when it comes to the growth of your walnut tree. You can provide the tree with nutrients much better in a natural way: compost.
Wait until the walnut tree has lost its fruit. Now put the mature compost on the ground directly around the trunk and carefully work it into the soil. This not only improves the soil quality in terms of nutrients. The soil also becomes looser so that it can absorb moisture better again.
If your walnut tree grows poorly, does not produce any fruit or develops wilted leaves, a soil analysis is recommended. Take out some soil and have it tested at either a nursery or laboratory. The result tells you which nutrients are missing in the soil and you can apply targeted fertilization.