When should I blow out my irrigation system?

Before multiple nights drop below 32°F. A professional irrigation blowout uses compressed air to safely clear all water from your system, preventing cracks, burst pipes, and damaged valves.

How do I protect evergreens from winter damage?

Apply anti-desiccant sprays to broadleaf evergreens like boxwoods and hollies. For sensitive shrubs, use burlap wraps or windbreaks to shield them from ice and snow damage.

What kind of fertilizer should I use in late fall?

Apply a winterizing fertilizer with high potassium and low nitrogen to strengthen root systems and build disease resistance. This helps grass green up early in spring.

Should I leave fallen leaves on my lawn?

No. Thick mats of leaves can smother your lawn, trap moisture, and invite mold, pests, and disease. Rake and remove from turf areas — consider mulching them for garden beds or compost.

Is winter a good time for pruning?

Yes, for many species. Trees and large shrubs benefit from a late fall health check and structural pruning while dormant, since their branch structure is easier to assess without leaves.

Winter Landscaping Checklist, Chester County

November 15, 2024 7 min read

Foundation plantings and shrubs — winter landscape prep in Chester County

As the temperature drops in Chester County and surrounding areas like Landenberg and West Chester, it's time to go beyond basic fall cleanup and focus on deeper winter protection strategies. Your landscape works hard all year; now it's your turn to protect and preserve it through the cold season.

Our region falls within USDA Plant Hardiness Zones 6b and 7a, meaning winters can be unpredictable with sudden freezes. This variability means that landscaping in Chester County requires not only seasonal awareness but also timely action.

1. Blow Out Irrigation Systems

Frozen water in irrigation lines can cause cracks, burst pipes, and damaged valves. A professional irrigation blowout involves using compressed air to safely clear all water from your system. Don't wait until it's too late — once we experience multiple nights below 32°F, the risk of damage rises sharply.

2. Protect Evergreens and Shrubs

Evergreens bring much-needed color to winter landscapes, but they are especially vulnerable to desiccation during cold, dry winds. The Arbor Day Foundation recommends applying anti-desiccant sprays to broadleaf evergreens like boxwoods and hollies.

For sensitive shrubs like hydrangeas or young arborvitae, use burlap wraps or windbreaks to shield them from ice and snow damage.

Pruned hedge pathway — protecting shrubs before winter

3. Final Lawn Treatment

Mulch bed protecting plants from winter cold in Chester County

Applying a winterizing fertilizer in late fall delivers essential nutrients that strengthen root systems and build resistance to disease. Look for a blend with high potassium and low nitrogen to prepare grass for dormancy.

4. Leaf Cleanup and Debris Removal

While it may be tempting to leave fallen leaves as "natural mulch," thick mats of leaves can smother your lawn, trap moisture, and invite mold, pests, and disease. Rake and remove leaves from turf areas, and consider mulching them for use in garden beds or compost.

Paver walkway steps — inspecting hardscape before winter freeze

5. Inspect Hardscape and Drainage

Winter freeze-thaw cycles can cause minor cracks in hardscaping to become major problems by spring. Inspect patios, walkways, and retaining walls for damage. Clear gutters and downspouts to prevent ice dams and ensure that water drains away from your foundation.

6. Check Tree Health and Prune Safely

Trees and large shrubs benefit from a late fall health check. Look for signs of decay, disease, or dead branches that could snap under snow or ice. Winter is also an ideal time for structural pruning, since trees are dormant and their branch structure is easier to assess.