Both seasons work, and each feeding does a different job: spring feeding supports steady canopy growth through the season, while fall feeding builds root reserves the tree carries through dormancy. Spring is the main feeding for most trees, and fall is an optional second one.

What does each season's feeding actually do?

A spring feeding, applied once soil temperatures rise, reaches a tree as it moves out of dormancy and draws on stored energy, encouraging steady canopy development rather than rapid, weak growth. A fall feeding reaches roots that stay active well after the leaves drop, so the nutrients go into root reserves for the following spring.

Which fertilizer fits each season?

For a tree coming out of dormancy in spring, TreeHelp Premium Fertilizer supplies slow release nitrogen in a blend matched to its species, so the canopy fills in steadily. Applying TreeHelp Fall Fertilizer in the middle to end of fall, as the tree enters dormancy, puts high potassium toward the roots while polymer coated particles hold the nitrogen back until spring leaf out.

Which trees should skip the fall feeding?

Oaks, and birches that are already struggling, should skip it. TreeHelp's guidance for both keeps feeding within the growing season and avoids late fall, so a spring feeding is the safer single choice for them.

Frequently Asked Questions

Is summer a good time to fertilize trees?

Not with a fertilizer high in nitrogen. Applied in the middle or end of summer, it pushes weak new growth that can be damaged in winter.

How late in fall can a tree still take up nutrients?

Until the soil gets too cold. Roots stay active after leaf drop, so a tree can absorb nutrients well into fall.

Can a tree get both a spring and a fall feeding in the same year?

Yes. Oak, birch, and palm guidance all call for one or two feedings a year, and a fall application adds root building nutrition on top of the spring feeding.

Where should the fertilizer go in either season?

Below the grass roots near the drip line, the circle beneath the outer edge of the canopy, and never piled against the trunk, so the lawn doesn't take it up first.