A tree care calendar for Northern Indiana looks different from what you would find in a national gardening guide. Our climate brings lake-effect ice storms, late spring freezes, summer derechos, and clay soils that drain poorly and compact easily under equipment. Managing trees well here means knowing what to do in each season and why timing matters for the specific species and conditions found across the Michiana area.

This calendar is designed as a practical reference you can return to throughout the year. Bookmark it and use it as your annual checklist.

Winter: December, January, February

What to Do

  • Walk your property after any ice or snow event and note any broken limbs, new leans, or trees that look structurally different than before the storm
  • Schedule late-winter pruning for most deciduous species, since February is the ideal window for the majority of trees in our area
  • Have hazardous deadwood removed before spring storm season begins, while the tree structure is still fully visible without leaves
  • Assess any ash trees on your property for emerald ash borer symptoms, since the bare canopy makes dieback patterns easier to see
  • Call 811 to mark underground utilities before any digging or grinding projects you are planning for spring
💡February is the best pruning month for most Northern Indiana trees. The tree is fully dormant, wounds heal fast when growth resumes in spring, and the leafless canopy lets you see the full structure clearly. It is also our slowest scheduling period, so you will often get faster appointments and sometimes better pricing than peak season.

What to Watch For

Ice storms are the primary winter hazard in Michiana. A single inch of ice accumulation can add hundreds of pounds of weight to a single branch. Dead or weakened branches that might look fine through summer can fail catastrophically under ice load. If a storm is in the forecast and you have trees with significant deadwood near your home, address them before the event if at all possible.

What to Leave Alone

Do not prune oaks in late winter if you plan to continue into early spring. Once temperatures start to climb and beetles become active, typically by April, oak pruning creates oak wilt risk. Get oak work done by mid-March at the latest or wait until July.

Feb
Best month to prune most Northern Indiana deciduous trees
1 inch
Ice accumulation that can break major limbs on healthy trees
Mid-March
Deadline for safe oak pruning before beetle season begins

Spring: March, April, May

What to Do

  • Complete any remaining late-winter pruning by mid-March before bud break on most species
  • Prune spring-flowering ornamentals such as dogwood, redbud, and serviceberry right after they finish blooming, not before
  • Inspect trees that came through winter for new cracks, split branch unions, or shifts in lean that were not there in fall
  • Apply mulch around the base of trees to retain moisture and protect surface roots, keeping it a few inches away from the trunk itself
  • Schedule a professional tree health assessment if you noticed any concerning symptoms over winter
  • Begin monitoring ash trees closely as EAB adult beetles emerge and become active in warmer weather
⚠️Do not prune oaks from April through June. Oak wilt spreads through fresh pruning wounds during peak beetle season. If storm damage forces an emergency cut on an oak during this window, seal the wound immediately with pruning paint. This is one of the few situations where wound sealant is actually recommended.

What to Watch For

Spring in Michiana brings two specific hazards worth monitoring. The first is heavy wet snow in March and April, sometimes after trees have already begun leafing out. A partially leafed canopy catches wet snow like a sail and branch failures are common. The second is the first major thunderstorm season of the year, which typically begins in earnest by May. Trees with co-dominant stems, included bark, or significant deadwood are at elevated risk during these early-season events.

Fruit Tree Note

If you have apple, pear, or cherry trees, late winter into very early spring just before bud break is your annual pruning window. Annual pruning keeps fruit trees productive and manageable. Skip a year or two and you will spend several years catching up.

Summer: June, July, August

What to Do

  • Prune oaks if needed, since July through October is the safe window after spring beetle activity slows
  • Water newly planted or recently transplanted trees during dry stretches, since Michiana summers can include extended dry periods that stress young root systems
  • Remove light deadwood and minor hazard branches as you notice them throughout the season
  • Walk your property after every significant storm and look for hanging limbs, shifted root balls, and newly split branch unions
  • Monitor for pest and disease symptoms while the full canopy makes them easier to spot
💡Summer is your best time to identify problems for fall and winter action. Crown dieback, thinning canopy, early fall color on isolated branches, and fungal growth are all more visible with leaves on. Note what you see and schedule assessments or removal work for the fall and winter window when pricing is often better.

What to Watch For

Summer derecho events are the biggest tree hazard in Michiana from June through August. These fast-moving windstorm systems can produce sustained winds over 60 mph across a wide path with very little warning. Trees with structural defects, dense unthinned canopies, or shallow root systems from compacted clay soils are most vulnerable. If you have trees fitting that description near your home, addressing them before storm season each year is worthwhile.

Also watch for sudden wilting or browning in oaks during summer. Red oaks showing rapid leaf wilt, often progressing from one or two branches to the whole tree within weeks, may be showing oak wilt symptoms. This is a serious situation that warrants an immediate professional assessment because oak wilt spreads through root grafts to neighboring trees.

What to Leave Alone

Avoid heavy structural pruning on most species during the heat of summer. Large cuts made in warm weather are more vulnerable to decay and insect entry than cuts made in cooler months. Minor deadwood removal is fine. Major crown work is better saved for late winter.

“The trees that fail in summer storms are almost always trees that had visible problems going into the season. Summer is when you pay for what you did not address in winter.”

Fall: September, October, November

What to Do

  • Complete oak pruning by the end of October before temperatures drop enough to make the work more difficult
  • Remove clearly hazardous deadwood at any time regardless of season, since a dead branch over your driveway does not wait for ideal timing
  • Have any trees with storm damage from the summer assessed and addressed before they go into winter in a weakened state
  • Begin scheduling late-winter pruning appointments now, since the best crews fill up early and February slots go fast
  • Note any trees showing unusual fall color patterns, early leaf drop, or new structural changes to discuss with a professional
⚠️Fall is generally not a good time for major pruning. Trees are pulling resources back from their extremities as they prepare for dormancy. Fresh wounds made in fall do not have time to begin the healing response before the tree goes dormant, leaving them exposed through the entire winter. Stick to hazard removal and save structural work for late winter.

What to Watch For

Fall is when the Michiana area starts to see the first significant frost events and occasionally early lake-effect snow before trees have fully dropped their leaves. A tree still carrying its full leaf load when a heavy wet snow arrives can lose major limbs. Watch the extended forecast in October and November and flag any high-risk trees near structures before the first snow event arrives.

Get on the Schedule Early

If you identified trees over the summer that need attention in the late-winter window, call in October or November to get on the schedule. We consistently see February and early March fill up well ahead of time for trimming and pruning work. Calling in fall gets you the timing you want without scrambling in January.

Year-Round: What Never Waits for the Right Season

Timing guidelines are for routine maintenance. Emergencies follow their own schedule. These situations warrant a call regardless of what month it is:

  • A tree or major limb has fallen or is hanging over a structure, vehicle, or occupied area
  • A tree is visibly leaning in a new direction after a storm or rain event
  • Large branches are cracked and held together only by bark
  • A tree is touching or near a downed power line
  • Roots are visibly lifting on one side of a tree that is leaning the other direction
  • A tree fell and is blocking emergency vehicle access to your property

For any of these situations, emergency tree service is available 24 hours a day throughout the Michiana area. The cost of emergency work is higher than scheduled work, which is exactly why proactive seasonal maintenance tends to pay for itself over time.

Your Annual Tree Care Checklist at a Glance

Season Priority Tasks Avoid
Winter Prune most species in February, remove deadwood, schedule assessments Oak pruning after mid-March
Spring Post-bloom ornamental pruning, storm inspection, ash tree monitoring Oak pruning April through June
Summer Oak pruning July onward, post-storm walks, pest and disease monitoring Heavy structural pruning in peak heat
Fall Hazard removal, storm damage follow-up, booking winter pruning slots Major structural pruning on healthy trees

Schedule Your Next Tree Care Visit

Michiana Tree Pros serves South Bend, Mishawaka, Elkhart, Goshen, Granger, Niles MI, and all surrounding communities year-round. Whether you need a late-winter pruning appointment, a post-storm assessment, or just want to get eyes on a tree that has been worrying you, call us at (574) 213-6355 or fill out our contact form. We provide free estimates and will give you honest guidance on what your trees actually need and when.