Spring has arrived in the Twin Cities, and with it comes the annual reminder that Minnesota’s weather can turn dangerous for our trees. High winds, heavy snow loads from winter, sudden thunderstorms, and persistent pests like emerald ash borer (EAB) and oak wilt take a toll on even the healthiest-looking trees in Bloomington, Edina, Richfield, Burnsville, and Minneapolis neighborhoods.
Last year alone, local arborists responded to hundreds of storm-related tree failures across the metro. A single falling tree or large limb can cause thousands of dollars in damage to roofs, vehicles, fences, and power lines — not to mention the serious safety risk to your family.
The good news? Most tree failures give clear warning signs weeks or months in advance. Knowing what to look for can help you avoid an expensive emergency in Bloomington or anywhere in the Twin Cities metro.
Here are the five most common signs that a tree needs professional removal — not just trimming — before it’s too late.
Why Spotting Problems Early Matters in Minnesota
Minnesota’s climate is tough on trees. Our heavy clay soils, freeze-thaw cycles, and extreme weather events weaken root systems and trunks over time. Add in widespread issues like emerald ash borer (which has killed millions of ash trees across the metro) and oak wilt (especially risky in April–June), and many mature trees in older Bloomington neighborhoods are living on borrowed time.
Waiting until a tree fails during a storm often means higher costs, insurance hassles, and potential liability. A professional tree risk assessment by a certified arborist can identify problems early and give you clear, honest recommendations — removal, cabling, or monitoring only.
Sign 1: Severe Leaning or Exposed Roots
One of the most obvious red flags is a tree that suddenly starts leaning noticeably toward your house, garage, or neighbor’s property.
In the Twin Cities, this often happens after heavy rains soften the clay soil or after winter snow load pushes trees off balance. Exposed or heaving roots are another clue — they signal that the root system is no longer anchoring the tree properly.
If more than 20–30% of the root plate is exposed or the lean exceeds 10–15 degrees, the risk of failure increases dramatically, especially during summer storms.
What to do: Do not attempt to straighten the tree yourself. Call a local arborist for a proper assessment. In many cases in Bloomington and surrounding areas, removal is the safest and most cost-effective option.
Sign 2: Large Dead Branches or “Widow Makers”
Dead, hanging branches — often called “widow makers” — are extremely dangerous. These brittle limbs can weigh hundreds of pounds and drop without warning, especially after wind or ice.
Look for branches with no leaves in spring while the rest of the tree is leafing out, or branches that snap off easily when you tug on smaller twigs.
In Minnesota, storm damage and pests like EAB accelerate deadwood formation. If dead branches are larger than 4–6 inches in diameter and located high in the canopy over targets (house, driveway, play area), professional removal of the entire tree is often recommended rather than risky high pruning.
Sign 3: Visible Cracks, Splits, or Cavities in the Trunk
Deep vertical cracks, horizontal splits, or large hollow cavities in the main trunk are signs of internal decay or structural weakness.
Minnesota’s extreme temperature swings cause bark to crack, allowing fungi and insects to enter. Once decay sets in, the tree loses its ability to withstand wind.
A rule of thumb from arborists: If the remaining solid wood shell is less than one-third of the trunk diameter at the defect, the tree is at high risk of snapping.
Cavities that hold water or show fungal growth (mushrooms or conks) are especially concerning and usually mean the tree should be removed to protect your Bloomington home.
Sign 4: Fungal Growth, Discolored Leaves, or Sudden Wilting
Mushrooms or shelf-like fungi growing at the base of the trunk or on roots almost always indicate root or butt rot. This internal decay is hidden until it’s advanced.
Other disease signs common in the Twin Cities include:
- Thinning crown or dieback at branch tips
- Premature leaf drop or undersized/discolored leaves
- Bark peeling or D-shaped exit holes (classic emerald ash borer sign on ash trees)
- Sudden wilting of an entire section of the tree
Oak wilt and EAB have devastated many trees in Bloomington and Minneapolis. Once these diseases reach advanced stages, treatment is no longer effective, and removal becomes necessary to prevent spread to healthy neighbors’ trees.
Sign 5: Heavy Storm Damage or History of Falling Limbs
If your tree has already lost major limbs in past storms, or shows multiple repair wounds from previous damage, its structure is likely compromised.
Repeated stress weakens the tree’s defense systems. In the Twin Cities, trees with a history of failure are much more likely to cause problems again — especially during our increasingly unpredictable spring and summer weather.
A professional assessment can determine whether the tree can be saved with bracing or if full removal is the smarter long-term decision for safety and property value.
What to Do Next in Bloomington or the Twin Cities
If you’ve noticed any of these five signs on your property, don’t wait for the next big storm.
Schedule a free, no-obligation tree risk assessment with our team serving Bloomington, Minneapolis, Edina, Richfield, Burnsville, Eden Prairie, and the entire Twin Cities metro. We’ll inspect the tree up close, explain your options clearly, and provide honest pricing for removal or stump grinding if needed.
Early action is almost always less expensive and less disruptive than emergency service after a tree falls.
Conclusion
Protecting your home and family starts with recognizing the warning signs. Minnesota trees face unique challenges — from harsh winters and clay soils to invasive pests like emerald ash borer and oak wilt. Spotting problems early can prevent costly damage and give you peace of mind.
If you’re in Bloomington or anywhere in the Twin Cities and suspect one of your trees is showing these signs, reach out today. Our local team is ready to help with safe, professional tree removal, stump grinding, and preventive care.
Ready to schedule? Call us or fill out our quick form and will be in touch!