Green arborvitae (Thuja occidentalis) is a popular choice for homeowners looking for a hardy, evergreen privacy hedge or ornamental tree. However, during the winter months, heavy snow and ice can put these trees under significant stress. While arborvitae are resilient, understanding how winter weather impacts them and what you can do to protect them is crucial to ensuring their long-term health.

Winter’s Impact on Green Arborvitae: Snow, Ice, and Cold Stress

The Effects of Snow and Ice on Arborvitae

When snow or ice accumulates on arborvitae, the weight can cause branches to bend or even break. Their upright, columnar shape makes them particularly vulnerable to this type of damage. Here’s how snow and ice affect them:

• Branch Bending or Splitting: Heavy snow and ice can weigh down branches, causing them to bend outward or snap.
• Loss of Shape: Persistent bending may result in permanent deformation, leaving the tree looking uneven.
• Internal Damage: If ice forms inside cracks in the bark, it can cause tissue damage and make the tree more susceptible to disease or pests.

Should You Remove Snow From Arborvitae Trees?

Yes! Removing snow is one of the best ways to minimize damage during winter. Follow these tips:

• Use a Broom: Gently sweep upward from the base of the tree to remove snow. Avoid hitting or shaking the branches, as this can cause breakage.
• Be Cautious with Ice: If ice is coating the branches, do not try to remove it. Forcing ice off can cause more damage than leaving it. Wait for warmer weather to naturally melt the ice.

Will Arborvitae Spring Back After Heavy Snow?

The good news is that many arborvitae can recover from snow damage, especially if the damage is minimal. Here’s what to expect:

• Minor Bending: Branches that bend under moderate snow load often recover on their own in spring as the sap flow returns.
• Severe Bending: If the branches remain bent or are split, you may need to prune the damaged sections to allow for regrowth.
• Permanent Deformation: In cases of extreme damage, some parts of the tree may not recover, and replacement may be necessary.

Tip: If you’re unsure whether your tree will recover, call Tree Dimensions for a professional assessment. We’ll help determine the best course of action to restore your landscape.

How to Fix Snow-Damaged Arborvitae

To help your arborvitae recover from winter stress, follow these steps:

1. Assess the Damage: Inspect the branches for splits, cracks, or breakage.
2. Prune Wisely: Remove broken or severely bent branches using clean, sharp pruning tools. Avoid over-pruning to ensure the tree maintains its structure.
3. Support the Tree: Use soft ties to gently pull bent branches back into place. Avoid tying them too tightly, as this can restrict growth.
4. Mulch and Water: In early spring, add a layer of mulch around the base of the tree to retain moisture and regulate temperature. Water the tree thoroughly to aid in its recovery.

How Cold Can Arborvitae Tolerate?

Green arborvitae are known for their cold hardiness, with most varieties tolerating temperatures as low as -30°F to -40°F (USDA zones 3-7). However, extreme cold, coupled with strong winds and heavy snow, can cause desiccation and branch damage.

Winter Protection Tips:

• Wind Barriers: Use burlap or windbreaks to shield the tree from harsh winter winds.
• Anti-Desiccant Spray: Consider applying an anti-desiccant spray in late fall to protect the foliage from drying out.

Preventative Measures to Protect Arborvitae From Snow and Ice

The best way to protect your arborvitae from damage is to take preventative action:

• Proper Planting: Choose a location that offers some protection from prevailing winds and heavy snow loads.
• Prune Annually: Regular pruning helps maintain a strong structure, making the tree more resilient to winter stress.
• Install Support Systems: For young or newly planted arborvitae, consider installing stakes or support ties during the winter.

When to Call Tree Dimensions for Help

If your arborvitae have sustained significant damage or if you’re unsure about their recovery, let the experts at Tree Dimensions assist you. We provide:

• Damage Assessments: Professional inspections to determine whether your tree can recover or needs replacement.
• Pruning and Restoration: Expert pruning to remove damaged branches and encourage healthy regrowth.
• Preventative Winter Care: Tips and services to protect your landscape year-round.

Don’t let winter weather damage your beautiful green arborvitae. Call us today at 864-400-2229 or visit our emergency service page to schedule a consultation.

With the right care, your arborvitae can survive the harshest winters and continue to thrive for years to come.