In this Urban Affairs article, Kevin Sproule from Davey's Edmonton office shares how zombie trees can occur.

Posted: November 03, 2023

There’s a decent chance that zombies are lurking in your neighborhood. No, not the figurines that your neighbor got at the Spirit of Halloween.Fall images from the Davey nursery in Wooster. Burlapped / Balled roots for Mound Road in Michigan

Zombie trees is what we’re getting at.

These are trees that are showing signs that they’re not in the best of shape. Branches have snapped off. Leaves aren’t quite the right color (though this isn’t the best time of year to determine that). The bark is split. The tree could be leaning. These are warnings that the tree is in serious trouble.

A “zombie” is a tree that’s suffering because of windstorms damage or extended droughts. Think of it as storm or drought damage that’s occurring in slow motion. And, because of the changing climate, we’re seeing extended drought conditions in Alberta, punctuated by severe storms. A tree might be showing the effects today from a windstorm that occurred a year or two ago.

“Just speaking anecdotally, I’ve seen some more (zombie trees),” says Kevin Sproule, assistant district manager at Davey Tree Edmonton. “We went through a couple of years of drought-like conditions here in Edmonton, and that’s definitely put stress on trees. They become stressed out and weaker overall. They become less able to handle damage from the weather.”

To read the rest of Kevin's interview, click here.

For more information, contact the Davey Edmonton office.

The Davey Tree Expert Company, headquartered in Kent, Ohio, provides research-driven tree services, grounds maintenance and environmental and utility infrastructure consulting for residential, utility, commercial and environmental partners in the U.S. and Canada. As one of the top ten largest employee-owned companies in the U.S., Davey's 12,000 employees have been dedicated to creating and delivering sustainable solutions since 1880. Apply today to join the Davey legacy, and learn about how we're growing with our new SEED Campus

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