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Most people think of spring as fertilizing season since that’s when flowers bloom, grass greens up, and trees burst back to life after winter. But fall is actually one of the best times to give your trees the nutrients they need. Even though growth slows above ground, a lot is still happening below the surface. Tree roots stay active well into late fall, storing energy, repairing themselves, and preparing for the months ahead. Supplying nutrients during this time helps strengthen trees from the ground up.
Because roots remain active even after leaves have dropped, fall provides the perfect window to fertilize. Instead of driving new leaf growth, nutrients are absorbed and stored in the roots, trunk, and branches and turns into fuel your trees can draw on when spring arrives. Think of it like filling up a tank before a long trip: fertilizing in fall gives your trees a head start on a healthy, vigorous growing season.
Not every tree requires fertilizer. If your trees are growing well, have rich leaf color, and show no signs of stress, they may already have the nutrients they need. However, signs like slow growth, undersized or yellowing leaves, or early leaf drop could indicate deficiencies. The best way to know for sure is with a soil test. Everett Tree Service offers professional soil testing to determine whether your soil is too compacted, too acidic, or missing key minerals so you can make informed decisions without over-fertilizing.
When it comes to fall fertilization, technique matters. The goal isn’t to trigger new growth that could be damaged by cold, but to build strong reserves. A slow-release fertilizer applied evenly across the root zone allows feeder roots to absorb nutrients gradually. Watering afterward helps carry those nutrients deep into the soil. For high-value or mature trees, professional deep root fertilization provides targeted delivery right where it’s needed most.
Fertilizer is just one piece of a healthy tree care plan. Consistent watering, good soil structure, and a layer of mulch all help maximize the benefits. When paired with proper pruning and monitoring, fall fertilization supports stronger, safer trees for years to come.
At Everett Tree Service, we view fall fertilization as an investment in long-term tree health. It helps trees handle the stress of winter and encourages vigorous growth come spring. To learn more about how fall fertilization can benefit your landscape, contact Everett Tree Service today.
