5 Mistakes Every Homeowner Makes While Trimming Trees

Tree trimming might seem like a simple weekend task, but doing it wrong can lead to damaged trees, safety hazards, and costly repairs. Whether you’re maintaining your landscape or clearing branches from power lines, avoiding these common mistakes can help keep your trees healthy and your property safe.

1. Trimming at the Wrong Time

Timing matters. Many homeowners make the mistake of trimming during the wrong season, especially in late summer or fall. Most trees benefit from pruning during their dormant season—typically late winter or early spring—when they’re less vulnerable to disease and stress. Pruning during the wrong time can lead to poor growth or exposure to pests.

2. Over-Pruning

It’s tempting to go overboard, especially when you want a tidy look. But removing too much foliage weakens the tree by limiting its ability to produce food through photosynthesis. A good rule of thumb: never remove more than 25% of a tree’s canopy in one season.

3. Improper Cutting Techniques

Many DIYers make rough or flush cuts, which can harm a tree’s ability to heal. Always cut just outside the branch collar—the swollen area where the branch meets the trunk. This encourages natural healing and prevents disease entry.

4. Using the Wrong Tools

Dull or dirty tools can cause jagged cuts and spread diseases between trees. Make sure your pruners, saws, and loppers are sharp and disinfected before use. For higher branches, always use proper extension tools—never climb with a chainsaw unless you’re a trained professional.

5. Topping the Tree

One of the most damaging mistakes is topping—a practice where the tree’s main branches are cut back severely to reduce height. Topping leads to weak, spindly regrowth and can shorten the tree’s life. Instead, opt for crown thinning or reduction to maintain shape without sacrificing structure.

Avoiding these common mistakes can make a big difference in your trees’ health and longevity. When in doubt, don’t hesitate to call a certified arborist for guidance or help with larger jobs.

This post was written by a professional arborist at Tree Service Company Clearwater FL. Robert Miller is the owner of Arbor Wise Professional Tree Care, a locally owned and operated tree service company that offers superb lawn care by the most experienced Arborists. Arborwise Tree Services is a tree removal company that offers stump removal, tree pruning, stump grinding, fertilization, and tree restoration. We have an extraordinary lawn care industry notoriety covering the Pinellas county area.