Protecting Your Trees and Turf from Unseasonably Warm Winter Temperatures

Unseasonably warm winter temperatures can disrupt the natural cycles of trees and turf, causing stress and damage that may not be immediately obvious. These unexpected temperature shifts challenge the usual dormancy period plants rely on to conserve energy and prepare for spring growth. Without proper care, your landscape could suffer from weakened plants, pest infestations, and poor growth in the coming seasons. This guide offers practical steps to help you protect your trees and turf during these warm winter spells, ensuring they stay healthy and resilient.

Understanding the Impact of Warm Winters on Trees and Turf

Trees and turfgrass have adapted to survive cold winters by entering a dormant state. This dormancy helps them conserve water and nutrients while avoiding damage from freezing temperatures. When winter temperatures rise unexpectedly, this cycle is disrupted:

• Trees may break dormancy too early, leading to premature budding or leafing. These tender new growths are vulnerable to damage if cold snaps return.

• Turfgrass may continue growing, using up stored energy reserves that should last until spring. This can weaken the grass and make it more susceptible to disease.

• Pests and diseases that normally slow down in cold weather may remain active longer, increasing the risk of infestations.

  
  

Recognizing these risks is the first step in protecting your landscape.

How to Care for Trees During Warm Winter Periods

Monitor Tree Health Closely

Keep an eye on your trees for signs of stress such as:

• Early leaf or bud development

• Discoloration

• Bark splitting or cracking

  
  

Early detection allows you to take action before problems worsen.

Avoid Fertilizing Too Early

Fertilizing stimulates growth, which is risky if temperatures drop again. Hold off on fertilizing until you are confident that the risk of frost has passed. Applying fertilizer too soon can encourage weak growth that is easily damaged.

Protect Against Frost Damage

If a cold snap is forecast after a warm period, protect vulnerable trees by:

• Wrapping trunks with tree wrap or burlap

• Using frost cloths or blankets over smaller trees and shrubs overnight

• Apply mulch to base of trees that is at least 6" deep to conserve soil temp. Do not allow the mulch to touch the trunk/bark of the tree.

  
  

This helps reduce damage to new buds and bark.

Maintaining Turf Health in Warm Winters

Avoid Heavy Traffic on Turf

Wet or soft turf is more prone to damage from foot traffic or equipment. Limit use of lawn areas during warm, wet winter conditions to prevent soil compaction and turf injury.

Mulch Around Trees and Turf

Apply a layer of mulch around tree bases and turf edges to conserve moisture, regulate soil temperature, and suppress weeds. Keep mulch a few inches away from tree trunks to prevent rot.

These examples show how simple adjustments can protect your landscape through unpredictable winter weather.