Planting a Tree for Earth Day or Arbor Day?

Grow your savings with landscaping that cuts energy costs

When most people think about saving energy, they picture insulation upgrades, efficient windows and appliance swaps. But your yard can play a major role too. According to the U.S. Department of Energy, a well-planned landscape can reduce air-conditioning costs by up to 25% and pay for itself in less than eight years.

Keep in mind that the United States has four main climate zones: temperate, hot-arid, hot-humid and cool. Plant strategically for your zone.

Choose the right trees

• Deciduous trees (those that lose their leaves in the winter) block sunlight in the summer and allow light in during the colder months, helping to regulate indoor temperatures year-round.
• Evergreen trees provide consistent shade and can serve as windbreaks, which is especially helpful in cool climates.

Tip: In hot climates, choose native or drought-tolerant species. They require less water and are typically more resilient.

Placement matters

• West and northwest sides: Plant trees to block strong mid- to late-afternoon sun.
• East and west windows: Use deciduous trees to block summer sun but still allow winter light.
• South side: Tall trees planted at a distance equal to two to five times their mature height can shade your home without blocking winter sun.
• West side: Shorter trees and shrubs help shield against intense, low-angle afternoon sun.
• Patios and driveways: Shade these areas to reduce reflected heat.
• Home perimeter: Bushes can absorb sunlight and reduce heat transfer, but avoid dense plantings in humid climates, where airflow is important to prevent excess moisture.

Tip: Be mindful near solar panels. Avoid planting tall trees on the south side of panels to prevent shade during peak sun hours.

Plan for a tree’s mature height

• Avoid planting trees that will grow taller than 15 feet near power lines.
• For taller species, plant at least 20 feet away — 45 feet is even better — to prevent safety hazards and avoid future pruning.

Call before you dig!

Before you plant anything, especially trees, call 811 to check for underground utilities. This free service marks public lines, like electricity, water and gas, so you avoid costly and dangerous mistakes. Call several business days before you plan to dig.

Author:
Linda Derhak
Energy and Climate Outreach Associate, Safe Electricity