6 Signs Your Tree Needs to Be Removed

Most trees that fail spectacularly were giving warning signs for months or years before the failure. Knowing what to look for is the difference between a planned removal that costs a few hundred to a few thousand dollars and an unplanned tree-through-the-roof that costs tens of thousands and possibly your homeowner's premium.

Sign #1: The Tree Is Dead — Or Most of It Is

A dead tree loses about 50% of its wood strength within the first year and most fall within three. Dead trees come down — the only question is when and where.

How to tell if a tree is dead:

• No leaves during growing season (May–August in Kentucky) when surrounding trees are full
• Bark falling off in large sheets from significant portions of the trunk
• Scratch test: scratch a small spot on a young branch with your fingernail — green underneath means living tissue; brown or dry means dead
• Brittle, snap-easily branches at the tips

Special case: dead ash trees in Bowling Green. Emerald ash borer (EAB) has killed most unmanaged ash across Warren County. EAB-killed ash gets exceptionally brittle, exceptionally fast — these trees can fail in calm weather, not just in storms. If you've got an ash that's lost more than 50% of its canopy, it's a priority removal.

Sign #2: A Significant Lean — Especially a NEW Lean

Trees that grew with a natural lean are usually fine. Trees that have recently started leaning are a major concern. The most dangerous version is when the lean increases over months or after storms — that's the root plate failing.

Warning signs around the base:

• Soil heaving on the side opposite the lean (the roots are lifting)
• Exposed roots on the side opposite the lean
• Cracks in the soil in a curved pattern around the trunk base
• The trunk visibly leaning more than it did a year ago

Any of these is a sign the tree is rotating around its root plate and will come down — the question is which storm finishes it. Don't wait.

Sign #3: Trunk Damage — Cracks, Cavities, Fungal Growth

The trunk is the structural backbone of the tree. Significant damage there is significant for the whole tree.

Vertical cracks in the trunk

Long vertical cracks indicate the trunk is splitting under load. A crack that's grown longer over months is the trunk progressively failing.

Cavities and hollows

Some hollow is normal in old trees and not automatically a problem. The danger is when:

• The cavity is more than 1/3 of the trunk diameter at that point
• It extends a significant vertical distance up the trunk
• The remaining shell is showing decay or fungal growth

Fungal growth at the base or on the trunk

Mushrooms (especially the shelf-fungus kind — bracket fungi, conks) on a tree's trunk or root flare are a major warning sign. They indicate internal decay that's well-advanced. A tree with conks should be evaluated by an arborist — most need to come down.

Sign #4: Major Storm Damage You Can't Prune Around

Storm damage doesn't always mean removal. A clean break of a single large limb is often fixable with a clean cut and time. But:

• The trunk split at a major branch junction — usually unsalvageable
• More than 50% of the canopy is gone — the tree doesn't have enough leaves left to feed itself
• The top broke off — for many species this is a death sentence; the tree slowly declines over years
• Multiple major limbs lost — the structural symmetry is gone, and the tree will be unbalanced and prone to further failure

If you're not sure whether storm-damaged trees can be saved, this is the highest-value time to get an arborist consultation. A $150–$300 assessment can save you the cost of unnecessary removal — or confirm what your gut is telling you.

Sign #5: It's Growing Into a Power Line or Structure

Trees that have grown into power lines aren't always removed — sometimes the utility line clearance program prunes them aggressively to maintain conductor clearance. But heavy line-clearance pruning over years often leaves trees so structurally compromised they should come down anyway.

Trees growing into structures — the trunk touching a foundation, branches crushing a gutter, roots lifting a sidewalk or driveway — generally need either major reduction pruning or removal. Reduction pruning can buy time; eventually the tree usually wins.

Sign #6: It's the Wrong Tree in the Wrong Place

Sometimes a tree is perfectly healthy and just shouldn't be where it is. Common examples in Bowling Green:

• Bradford pears anywhere — structurally defective species, prone to splitting; the recommendation is "remove and replace with something else" before they fail in a storm
• Silver maples too close to the house — fast-growing softwood, drops big limbs constantly, invasive root systems
• Volunteer hackberry or mulberry along fence lines — they grow fast, the wood is weak, they invariably end up causing fence/neighbor problems
• Eastern red cedar planted as a "small shrub" in the 1980s that's now 40 feet tall and overshadowing everything
• A tree planted directly over a septic line, sewer lateral, or underground utility that has now grown enough to cause real damage

These removals are often emotional — the tree isn't sick, it isn't dangerous yet — but it's a slow-motion problem that gets more expensive every year you wait.

When to Call an Arborist Instead of Just Booking Removal

Many of the situations above have a "remove" answer and a "save with intervention" answer. If the tree has sentimental value, is mature and would take decades to replace, or you're not sure, a paid arborist consultation (typically $150–$350) is worth it. An honest arborist will tell you when removal is the right call and when it isn't.

Skip the consultation when:

• The tree is clearly dead and within falling distance of something valuable
• Storm damage is so extensive the answer is obvious
• The tree is a structurally defective species (Bradford pear) and you've already decided it's coming down
• You just want it gone for landscape reasons