Protecting Young Trees from Rabbits, Voles, and Deer in Minnesota Winters

There are few worse feelings for a Twin Cities homeowner than walking out in early April, after a long winter, to find that the young crabapple you planted last fall has had its bark stripped in a perfect ring around the base. That tree is almost certainly dead — girdled by a rabbit or vole that ran out of easier food somewhere around February.

Winter is hungry season for wildlife in Minnesota. By midwinter, the snow has buried the grasses and seeds rabbits and voles normally eat, deer have cleaned out the woods bordering metro neighborhoods, and your tender young trees and shrubs become the salad bar. The damage they do — girdled trunks, chewed roots, browsed evergreen tips, and antler-rubbed bark — ranges from disfiguring to fatal.

The good news: protecting young trees is cheap, simple, and highly effective if you do it before the first hard winter sets in. This guide breaks down exactly how to defend against each pest — rabbits, voles, and deer — and which trees and shrubs in the metro are most at risk.

Why Winter Is the Danger Zone

Understanding the why makes the how obvious. Rabbits, voles, and deer aren't out to ruin your landscape — they're trying to survive a Minnesota winter, and your young plants are an easy, exposed food source when everything else is buried under snow or frozen solid.

• Rabbits (cottontails) eat bark and small twigs once snow covers their normal greens. They feed standing on the snowpack, so they reach higher as winter deepens.
• Voles (meadow mice) tunnel through the subnivean zone — the space between the snow and the ground — chewing bark at and below the soil line where you can't see the damage until spring.
• Deer browse evergreen and shrub tips for food, and bucks rub their antlers on young trunks in fall, shredding the bark.

The most damaging outcome from any of them is girdling — when bark is removed in a complete ring around the trunk. Bark carries nutrients between roots and canopy, so a girdled tree starves and dies, often not showing the full effect until it leafs out weakly and collapses in early summer.

Which Trees and Shrubs Are Most at Risk

Wildlife have clear favorites. If you've planted any of these in the last few years, prioritize protecting them:

• Apple and crabapple (Malus spp.) — the number-one rabbit and vole target in the metro; thin, sweet bark.
• Mountain ash (Sorbus spp.), serviceberry (Amelanchier), and cherry/plum (Prunus spp.) — all heavily browsed.
• Young maple, linden, and honeylocust — thin-barked when young.
• Arborvitae (Thuja occidentalis) and yew (Taxus) — deer browse these evergreens hard; arborvitae is practically deer candy.
• Burning bush, dogwood, and winterberry — favored shrubs for rabbit clipping and deer browse.

By contrast, some plants are largely ignored. If deer are a chronic problem in your neighborhood, lean on our list of deer-resistant shrubs deer actually leave alone when choosing new plants.

Protecting Against Rabbits

Rabbits are the most common and most preventable threat. The fix is a physical barrier around the trunk, installed in late fall before the snow flies.

Hardware cloth cylinders (best option)

• Wrap a cylinder of quarter-inch galvanized hardware cloth around the trunk, leaving an inch or two of air gap so it doesn't rub the bark.
• Make it at least 24 inches tall — taller is better. Rabbits stand on packed snow, so in a heavy-snow winter they can reach 18+ inches up. Size for the deepest snow you might get.
• Push the bottom an inch or two into the soil, or pin it down, so rabbits can't push under it.
• Hardware cloth lasts for years and can stay on through summer without trapping moisture the way solid wraps do, though you'll want to widen it as the trunk grows.

Plastic spiral guards (quick and cheap)

• White plastic spiral or split-tube guards snap around the trunk and double as sunscald protection.
• Good for a single season, but check that they extend above expected snow depth.
• Remove these in spring — left on year-round they trap moisture, harbor insects, and can constrict the trunk.

Repellents and fencing

Taste and odor repellents (like those based on putrescent egg or capsaicin) help on shrubs and reachable twigs but need reapplication after snow and rain. For beds of vulnerable shrubs, a simple chicken-wire fence 2 feet tall around the planting is highly effective.

Protecting Against Voles

Voles are sneakier than rabbits because they work hidden under the snow, chewing bark at the soil line and even gnawing roots. You often don't discover vole damage until the snow melts and reveals chewed bark and surface runways in the grass.

Defend against them by removing cover and adding a ground-level barrier:

• Hardware cloth, pushed into the soil. The same cylinder that stops rabbits stops voles if you push it an inch or two below the soil surface so they can't tunnel under it at the base.
• Keep mulch pulled back from trunks. Mulch piled against bark — the dreaded "mulch volcano" — is a vole hotel. Maintain a 3-inch gap of bare soil around every trunk.
• Mow turf short in late fall around young trees and along bed edges. Voles avoid open, exposed ground where predators can see them; tall grass and weedy edges give them safe runways.
• Clear tall weeds and leaf piles away from the base of trees before winter to eliminate nesting cover.

Because voles attack below the snow and the soil line, their barrier needs to start at or just below ground level — a guard that only covers the upper trunk leaves them an open door.

Protecting Against Deer

Deer are the toughest of the three because they're large, persistent, and they jump. In metro suburbs that border parks, golf courses, lakes, and wooded corridors — Eden Prairie, Plymouth, Shoreview, Woodbury, Lake Elmo, and similar — deer pressure can be relentless. There are three lines of defense:

Physical barriers

• Trunk protection from antler rubbing: In fall, bucks rub young trunks (1–4 inches in diameter) to mark territory, shredding bark. A sturdy guard or a few stakes set tight around the trunk prevents it.
• Fencing: A deer fence needs to be 6–8 feet tall to be reliable — deer clear a 4-foot fence easily. For individual plants, a cage of welded wire or a ring of stakes with netting works.

Repellents

• Odor- and taste-based deer repellents work well when rotated (deer get used to a single product) and reapplied through the winter after snow and thaw.
• Apply before damage starts, not after — once deer establish a feeding pattern, they're much harder to deter.

Plant choice

The most durable strategy is to plant things deer dislike near the woods and save their favorites — arborvitae, yew, hosta, tulips — for protected spots. Resistant choices include boxwood (Buxus), juniper (Juniperus), spruce (Picea), ninebark (Physocarpus opulifolius), and many aromatic perennials. Our winter-hardy shrub collection includes plenty of deer-resistant options for the metro.

When to Install (and Remove) Protection

Timing makes or breaks your defense. Get barriers up before wildlife start feeding, and remember to take seasonal items off in spring.

1. Late September–October: Install deer protection on young trunks before the fall rut and antler-rubbing season. Begin repellent applications.
2. Late October–November: Install rabbit and vole barriers (hardware cloth, spiral guards) before the first snow and before food gets scarce. Pull mulch back from trunks and mow turf short.
3. Throughout winter: After each big snowfall, check that guards still extend above the snowpack — a rabbit on three feet of packed snow can reach bark a guard no longer covers. Reapply repellents after thaws.
4. Early spring: Remove plastic spiral guards and any solid wraps so they don't trap moisture and pests through the growing season. Inspect for damage and repair any chewed bark wounds.

What to Do If Damage Already Happened

If you find winter damage in spring, don't panic — assess first:

• Partial bark damage (less than a third of the circumference): The tree can usually wall off the wound and survive. Leave it alone — don't paint it or wrap it — keep it watered, and let it heal.
• Damage over half the circumference: The tree is stressed and may decline; give it a season to see how it responds before deciding to replace it.
• Complete girdling (a full ring): The tree will almost certainly die once it exhausts stored energy. Plan to replace it, and protect the replacement properly from day one.
• Browsed shrubs and clipped tips: Most rebound fine. Prune cleanly above the damage and let new growth fill in.

Building a Layered Defense

No single method stops every animal in every winter. The homeowners who lose the fewest plants combine several tactics into a layered system, so that if one defense fails another holds.

A practical layered approach for a metro yard backing onto woods or a park:

1. Start with plant choice. Site deer favorites (arborvitae, yew, hosta) in protected spots near the house and use deer-resistant plants like spruce, juniper, boxwood, and ninebark along the wild edges. This is the cheapest, most permanent defense.
2. Add physical barriers. Hardware cloth on every young trunk for rabbits and voles, plus fencing or wire cages for high-value plants exposed to deer.
3. Layer in repellents. Rotated, reapplied odor and taste repellents handle the browse pressure that barriers don't cover, especially on shrub tips.
4. Remove the cover. Short turf, mulch pulled back from trunks, and cleared weed and leaf piles take away the hidden runways voles and rabbits depend on.
5. Monitor and adjust. Walk the yard after every big snow, top up repellents during thaws, and raise guards if the snowpack climbs.

Comparing Your Barrier Options

There's no shortage of products marketed for tree protection. Here's how the common ones actually stack up for Minnesota conditions:

• Quarter-inch hardware cloth — the most durable and effective for both rabbits and voles. Lasts years, breathes well, and can stay on through summer. Slightly more work to install. The best overall choice.
• White plastic spiral guards — cheap, fast, and double as sunscald protection, but only good for one season and must come off in spring. Fine for low-pressure yards.
• Corrugated plastic drain tubing (split) — inexpensive trunk armor against rabbits and string trimmers, but traps moisture if left on year-round and does nothing against deer.
• Tree wrap (paper/burlap) — mainly for sunscald, offers little protection against determined rabbits and none against voles at the soil line.
• Repellent sprays alone — helpful as a supplement, but never rely on them as your only defense for a tree you can't afford to lose. Snow and rain wash them off.

FAQ

How tall should a rabbit guard be in Minnesota? At least 24 inches, and taller is better. Rabbits feed while standing on packed snow, so in a deep-snow winter they can reach 18 inches or more up the trunk. Size your hardware cloth or spiral guard for the deepest snowpack your yard typically gets.

What's the difference between rabbit and vole damage? Rabbits chew bark and twigs above the snow line, leaving clean, angled cuts higher on the trunk. Voles work hidden under the snow, gnawing bark at and below the soil line, often with surface runways visible in the grass when the snow melts. Voles can also chew roots.

Will a girdled tree survive? If bark is removed in a complete ring around the trunk, the tree is girdled and will almost certainly die, because bark carries nutrients between roots and canopy. Partial damage of less than a third of the circumference usually heals on its own. Don't paint or wrap wounds — just keep the tree watered.

How do I keep deer from eating my arborvitae? Arborvitae is a deer favorite, so use layered defense: a tall (6–8 foot) fence or individual wire cage, rotated repellents reapplied through winter, and, ideally, planting arborvitae only in protected spots while using deer-resistant evergreens like spruce or juniper near the woods.

When should I install winter tree protection? Install deer protection in late September–October before antler-rubbing season, and rabbit/vole barriers in late October–November before the first snow and before food gets scarce. Remove plastic guards and wraps in early spring so they don't trap moisture and pests.

Protect Your Young Trees Now

A few dollars of hardware cloth and an afternoon in late fall is all it takes to carry a young tree safely through a Minnesota winter. Wrap the trunks, pull the mulch back, mow the grass short, choose deer-resistant plants near the woods, and check your guards after every big snow.

If you're adding trees and shrubs this season, start with hardy, well-sited plants — and protect them from day one. Browse our zone 4 trees and winter-hardy shrubs for the Twin Cities, available with local delivery and professional installation. And if deer are your biggest headache, our guide to deer-resistant Minnesota plants will help you plant smarter from the start.