Question: Should I Use Fertilizers on Older Trees? If So, When Should I Fertilize?
Yes, you should still apply tree fertilizers to older specimens, even though it's natural to think that they're "big enough already." They need the nutrients to stay healthy. Here's when to do that fertilizing....
Answer:
In general, fertilize trees in spring. This will result in surprisingly vigorous new growth, including a thicker leaf canopy. The foliage will also display a richer color as the result of the application of tree fertilizers.
In the next FAQ, we'll look into how to mulch around trees.
