Since we use a controlled-release fertilizer, timing is not as much of a concern when it comes to fertilizing your trees. However, we do try to avoid applying fertilizer to trees when the soil is saturated with rainwater, frozen, or when the ground is very dry. These conditions can reduce the fertilizers effectiveness by impacting the delivery of nutrients to your trees. Depending on your climate and the type of trees you have, there are some benefits to fertilizing trees during a specific time of year. Here are a few examples:
Fertilizing trees in the fall helps recover nutrients in the soil that may have been lost during the summer.
Fertilizing trees in spring helps support new growth during the peak growing season. It can also green up the tree leaves and ensure they stay vibrant during summer and fall. This timing also supplies nutrients that help trees fight off infection so they can remain healthy year round.