5 Signs Your Tree Needs Fertilizer
Like any plant in your yard, trees require a complex suite of nutrients to thrive. Only some of these nutrients are produced via photosynthesis, the rest must be available in the soil.
1. Weak Growth
Weak growth from a lack of fertilizer can come in several forms. The most common is stunted or slow growth on young trees, as these have the shallowest roots but the highest nutrition needs. In some cases, a tree may respond to a lack of nutrients by putting out suckers around the base of the tree or up the trunk in an effort to produce more leaves for collecting nutrition from the sun.