The Sacramento Tree Foundation does not recommend the use of fertilizer when
planting a tree. Trees will absorb nutrients better when the roots are no longer
disturbed and are actively growing.
Use natural mulch instead. Bark chips work
Avoid the use of “weed and feed” mixes when fertilizing lawns
near trees. They contain a broad leaf weed killer, which can damage or kill young
Young trees may benefit from fertilizer after the first year. Determine
the soil needs before starting on a fertilizing program by having soil analyzed.
If a young tree becomes stressed, do not fertilize. Decide what conditions are
causing the tree to decline, and remedy the situation.