Introduction
Winter thaws can be tough on trees. One day it’s freezing, the next, temperatures rise, causing snow to melt—only to refreeze again overnight. These sudden shifts put stress on trees, weaken their roots, and make them more vulnerable to damage. The good news? A little proactive care can help. Here’s how to keep your trees healthy when winter temperatures fluctuate.
1. Watch for Frost Cracks
When temperatures swing between freezing and thawing, tree bark expands and contracts quickly, sometimes causing long vertical cracks in the trunk—known as frost cracks.
How to Prevent and Manage Frost Cracks:
- Wrap young or thin-barked trees with burlap or tree guards in late fall to reduce temperature shock.
- If a crack appears, don’t panic! Many trees heal on their own. Keep an eye on it, and if it worsens, consult an arborist.
2. Prevent Ice and Snow Damage
Melting snow followed by a sudden refreeze can lead to heavy ice buildup on branches, increasing the risk of breakage.
What You Can Do:
- Gently brush snow off branches with a broom—never shake them, as this can cause snapping.
- If ice forms, resist the urge to break it off; let it melt naturally to avoid further stress on the tree.
3. Protect Tree Roots from Exposure
As snow melts, tree roots can become exposed, making them vulnerable to cold snaps and potential damage.
How to Help:
- Apply a fresh layer of mulch around the base of your trees to insulate roots and maintain soil moisture.
- Be mindful of where you pile snow—avoid pushing salty or chemically treated snow near tree roots.
4. Check Soil Conditions
Repeated freezing and thawing can compact soil, making it harder for trees to absorb water and nutrients.
How to Fix It:
- In early spring, lightly aerate the soil around your trees to loosen compacted areas.
- Once the ground fully thaws, water your trees deeply to replenish lost moisture.
5. Look for Leaning Trees
Winter thaws can saturate the ground, weakening root systems and causing trees to shift or lean.
What to Watch For:
- Trees that appear to be tilting more than usual.
- Exposed roots that weren’t visible before the thaw.
How to Respond:
If a tree starts leaning significantly, call an arborist to assess whether it can be stabilized or if removal is necessary for safety.
Conclusion
Winter thaws can be stressful for trees, but with a little attention, you can help them weather the season and stay strong for spring. Keeping an eye on bark cracks, ice buildup, and root exposure will go a long way in maintaining tree health. If you’re unsure about winter damage or need expert tree care, Environmental Advantage’s certified arborists are here to help.
For more information or to schedule a consultation, visit Environmental Advantage.