Natural Resources Commission: Tree Checklist for Cold Weather

Published on January 05, 2026

By Suzi Myers, Natural Resources Commissioner

Even though the leaves have fallen from your deciduous trees, it pays to give them a quick cold weather check-up so they can have a healthy springtime. Here is a list for your winter tree care:

Inspect for damage: Easy to do with the bare branches. Look for broken limbs, cracks, or signs of disease.

Clean up the base: Clear away mulch piled too high and move mulch away from the tree bark. Remember, high mulch will do a lot of harm to the trees and don’t pile mulch higher than the root flare.

Prune with purpose:  Winter is a prime time for structural pruning.  With leaves gone, you can shape wisely and support long-term growth. 

Protect young trees: Use trunk guards or fencing to prevent critter damage.

Watch the salt: De-icing salts can damage roots and soil.  Use tree-friendly options or create barriers to block  runoff.  Remember, use the least amount of salt possible, apply it evenly after shoveling for the best results.

Water during dry spells:  if your winter has been mild and dry, give trees a deep drink during warmer days.  Roots still need moisture, even when dormant.

For more tips and resources visit arborday.org/wintertips.