Protecting Your Lawn Through Colorado’s Harsh Winters

Colorado winters can be brutal on lawns. From deep freezes to dry air, your turf faces several threats—but with the right care in the fall, you can ensure a healthy return come spring.

Why Winter Protection Matters

• Freeze-thaw cycles - damage roots
• Low moisture - leads to winter desiccation
• Foot traffic - on frozen grass causes breakage
• Snow mold - can develop with early snowfalls

Steps to Winterize Your Lawn

1. Apply a Winterizer Fertilizer (Late Fall)

Advantages:

• High in potassium (10-0-20)
• Promotes root strength and cold resistance

2. Final Mow Before Snow

Advantages:

• Cut to 2–2.5 inches
• Prevents matting and snow mold
• Don’t scalp the lawn—removing too much can stress grass

3. Rake and Remove Leaves

• Leaves block sunlight and trap moisture
• Reduces risk of fungus and rot

4. Aerate if Needed (Early Fall)

• Improves root access to water and nutrients
• Best done in September or early October

5. Overseed Thinning Areas

• Use cool-season grass seed
• Ideal if done 4–6 weeks before first frost

Winter Watering Tips

• Water during extended dry spells if temps rise above 40°F
• Focus on sunny, wind-exposed areas
• Use a garden hose and manual sprinkler

Protect Against Snow Damage

• Avoid piling shoveled snow on the same spot
• Prevent ice buildup on turf
• Don’t walk on frozen grass

Spring Recovery Plan

• Rake early to remove debris
• Apply pre-emergent weed control (April)
• Lightly fertilize when soil temps hit 55°F
• Overseed bare spots if necessary

Conclusion

Colorado winters may be tough, but your lawn doesn’t have to suffer. With proper fall preparation, winter watering, and spring follow-up, you’ll protect your turf and ensure a beautiful lawn when the snow melts.