Windbreaks for Energy and Habitat

What does a windbreak actually do?

A windbreak is one or more rows of trees and shrubs planted to slow wind. The sheltered zone downwind is calmer, which can reduce cold air moving through buildings, keep snow from piling where you do not want it and give livestock and gardens a gentler environment.

Extension sources on energy conservation note that how much a windbreak helps depends on its height, density, length and distance from what it protects. A short or thin planting in the wrong place does little, so design is worth the time.

Even a modest planting can make a noticeable difference to how a farmyard feels in winter, but the effect takes years to develop. Treat the first seasons as an investment period and keep expectations realistic.

• Slows wind on the downwind side
• Can help control drifting snow and dust
• Shelters buildings, animals and gardens

Where should it go?

Start by observing which direction the strongest and coldest winds come from in your area, since this varies by region and season. Windbreaks are usually placed on the side of the property facing those winds, and set back from buildings by a distance suggested in local guidance.

Think about snow too. A planting set too close to a driveway or building may drop drifts where you do not want them. Your extension forester or conservation district can help you choose a spot for your site.

• Identify prevailing winter wind direction
• Keep appropriate distance from buildings and drives
• Plan around snow drift patterns

How many rows and what mix?

Windbreaks are often designed with multiple rows that combine evergreens, which hold needles through winter, with deciduous trees and shrubs that add height, variety and food for wildlife. A single row of one species is more vulnerable to pests and disease.

Pick species adapted to your climate and soil, and avoid any that are invasive locally. Ask your state forestry agency or extension office for recommended species lists, and consider your wildlife goals, such as berry-producing shrubs on the sheltered side.

• Combine evergreens, shade trees and shrubs
• Use a variety of species to spread risk
• Choose region-specific, non-invasive plants

How should you space and plant them?

Spacing depends on species and the width of the mature trees. Planting too tightly leads to crowding, weak growth and disease, while spacing too widely leaves gaps that let wind through. Local guidance usually offers recommended spacing for each species.

Plant when trees are dormant or when soil is moist and workable, based on your frost dates. Keep roots moist until planted, and call your utility locating service before you dig anywhere near power lines or buried utilities.

• Follow species spacing guidance
• Plant in cool, moist conditions
• Locate utilities first

What care do young windbreaks need?

The first few years decide whether the windbreak succeeds. Young trees need protection from deer, rabbits and mowers, and control of competing grass and weeds through mulch, fabric or careful mowing. Water during dry spells.

Check every year and replace trees that fail, so gaps do not open up. A windbreak is a long-term project and will not give full protection until trees reach a useful height, which takes years.

• Protect from browsing and mowers
• Control weeds near trunks
• Replace failed trees promptly

How does a windbreak help wildlife?

Dense plantings offer winter cover and nesting sites for birds and small animals, and flowering and fruiting species provide food. A windbreak also acts as a travel corridor between larger patches of habitat.

To make the planting more useful, include native shrubs and trees, leave some fallen leaves and branches in place and avoid heavy pruning during nesting season. Avoid spraying chemicals near the planting that could harm insects and birds.

• Include native fruiting shrubs
• Leave leaf litter and some fallen wood
• Avoid heavy pruning during nesting season

Are there rules or help available?

Setbacks from roads, property lines and utilities, and any height limits, are set locally and vary by county and town. Ask your local zoning or planning office before you plant. If your windbreak is near a road, ask about sight-line requirements.

Technical and financial help may be available through NRCS, state forestry agencies and conservation districts, and some districts sell seedlings suited to windbreaks. Programs change, so ask what is currently offered and what they require before you buy.

• Ask local officials about setbacks and sight lines
• Ask NRCS about technical and financial help
• Check seedling sales at your conservation district

Last reviewed: November 12, 2026. Written by the Homestead & Small Farm Editorial Team. See our editorial policy.