Trees near a driveway are protected by keeping salty snow and meltwater off their root zones, shielding the side facing the pavement, and flushing the soil with deep watering in spring. Using sand or a gentler deicer on the driveway itself reduces the problem at its source.

How does road salt damage trees?

In two ways: through the soil and through the air. Salt dissolved in meltwater builds up in the root zone and draws water away from roots, so a tree shows drought symptoms even in moist soil, while spray from plows and passing cars browns the buds and needles facing the road.

How are trees shielded from salt during winter?

By changing where salt and snow end up. Plowed or shoveled snow is piled away from root zones, sand or a salt alternative is used on the stretch of driveway nearest the tree, and a burlap screen set on the road side of evergreens catches spray.

How is salt flushed from the soil in spring?

With slow, deep watering once the ground thaws. Filling a Treegator Original Slow Release Watering Bag zipped around a young tree's trunk once a week in early spring sends a deep soak through the root zone, helping move salt below the roots.

Frequently Asked Questions

What are the signs of salt damage?

Browning on the side facing the road, scorched leaf edges in spring, and dieback that starts at the branch tips.

Which deicers are gentler on trees?

Sand adds traction without salt, and calcium magnesium acetate is a commonly used gentler alternative to rock salt.

Does salt damage show right away?

Usually not. It often appears in spring or summer, after salt has built up in the soil over winter.

Should a salt damaged tree be fertilized?

Not right away. Fertilizer adds more salts to the soil, so flushing with water comes first.