Should You Cover Trees for Winter?

While trees in their natural habitat don’t have blankets or covers, some situations call for additional winter protection for your landscape trees. This guide will help you determine whether your trees need winter protection and how to provide it properly to maintain their health and longevity.

Do All Trees Need Winter Protection?

Native and Established Trees

Most mature, native trees don’t need winter protection because:

They’re naturally adapted to local climate conditions
They’ve developed deep root systems
Their bark provides natural insulation
They’ve evolved to handle local weather extremes

Trees That May Need Protection

Young Trees

Recently planted (within 2-3 years)
Thin bark varieties
Trees still establishing root systems

Vulnerable Species

Fruit trees
Japanese maples
Magnolias
Other non-native ornamental species

Special Situations

Trees in containers
Trees in exposed locations
Trees in frost pockets
Trees near roads (salt exposure)

When to Consider Winter Protection

Weather Conditions

Extreme temperature fluctuations
Extended periods of below-freezing temperatures
Heavy snow or ice potential
Strong winter winds
Winter sun exposure (south/southwest facing)

Environmental Factors

Location Risks

Open, exposed areas
Wind tunnels between buildings
Areas with reflected heat
Road salt exposure zones

Soil Conditions

Poorly drained areas
Shallow soil
Compacted soil
Recently disturbed soil

Types of Winter Protection

Trunk Protection

Tree Wrap

When to use: Young trees, thin-barked species
Materials: Commercial tree wrap, burlap, kraft paper
Application: Start at base, spiral up, overlap layers
Removal: Early spring before bud break

Guards

Purpose: Prevent animal damage, sun scald
Types: Plastic tubes, wire mesh, metal guards
Installation: Leave space for growth
Maintenance: Check regularly for damage

Crown Protection

Anti-Desiccation Sprays

Best for: Evergreens

Application: Late fall
Benefits: Reduces moisture loss
Limitations: May need reapplication

Burlap Screens

Use: Wind and salt protection
Installation: Create a barrier without touching the foliage
Removal: Early spring
Maintenance: Check for sagging

Root Zone Protection

Mulching

Depth: 2-4 inches

Material: Wood chips, leaves, straw
Application: Keep away from the trunk
Benefits: Insulates roots, retains moisture

Snow Fencing

Purpose: Prevent snow accumulation damage
Installation: Before the first snow
Placement: Upwind of vulnerable trees
Removal: After the last frost

Proper Protection Techniques

Do’s

Proper Timing

Install protection before the first freeze
Remove protection gradually in spring
Monitor weather forecasts
Adjust protection as needed

Correct Materials

Use breathable materials
Choose the appropriate size of protection
Select durable products
Use light-colored materials

Regular Maintenance

Check for damage regularly
Adjust loose materials
Remove accumulated snow
Monitor for pest activity

Don’ts

Common Mistakes

Don’t wrap too tightly
Avoid plastic materials (trap moisture)
Don’t leave protection on too long
Don’t cover unnecessarily

Harmful Practices

Excessive pruning before winter
Using dark materials (heat absorption)
Allowing materials to rub branches
Blocking all air circulation

Conclusion

While not all trees need winter protection, understanding when and how to provide it can be crucial for vulnerable trees. Focus protection efforts on young, newly planted, and sensitive species while allowing established native trees to rely on their natural adaptations. When in doubt, consult a certified arborist to develop the best winter protection strategy for your trees.