When should you fertilize maple trees?
You should fertilize your maple trees in the early spring after they have a few new leaves. However, it’s only necessary if you think the tree looked full during the previous growing season.
Do red maple trees need fertilizer?
Feeding Red Maples
Spread 15 pounds of 20-5-5 fertilizer per 1,000 square feet of root zone in the spring, before the tree produces new growth. Apply the fertilizer evenly across the surface of the soil.
Can you over fertilize a maple tree?
The Effects of Excessive Fertilization on Trees
You can actually kill a tree if you apply too much fertilizer. Applying high levels of quick- release nitrogen can burn the roots when applied to the soil and can burn the foliage when applied as a foliar spray or drench.