Whether you're picking out a tree for your landscape or making a list for this season's to-dos, we have your tree care questions answered.
Davey Knowledge
How Altitude Affects Tree Growth in Denver: What Homeowners Should Know
January 9, 2026
High elevation, dry soil, and UV exposure all impact tree growth in Denver. Learn how altitude affects tree health and which trees thrive at 5,000+ feet.
Tree Safety, Storm Prep & Recovery
Protect Your Home by Prepping Trees for Tornadoes and Hurricanes
April 7, 2021
If you live in an area where tornadoes or hurricanes happen, you already know how important it is to prep early in the tornado and hurricane season. See what you can do to reduce storm damage.
Tree Removal
What is the Best Time of Year to Remove Trees?
November 21, 2022
When your tree is decaying, usually, the best time to remove it is asap! You don't want it to fall on its own. But if the problem is less severe, remove at...
Plant Health Care
What's This Green Stuff Growing On Trees And Rocks?
May 7, 2020
Lichen does not pose a threat to your tree’s health. It is completely harmless so there’s no real need to get rid of it. But if the sight of it bothers you, follow the steps in this post to remove it. We highly recommend to not use a pressure washer to remove lichen.
Leaf & Needle Problems
Why Are There Yellow Leaves on Trees in Summer?
July 26, 2021
There are many reasons your leaves could be turning yellow and falling off. Run down the checklist below to help diagnose your tree.
Soil Care & Mulching
Why Soil Care Is Important For Your Trees
April 4, 2024
At Davey, we prefer adding macronutrients and micronutrients as part of soil health management by using a slow-release fertilizer, learn why.
Tree Planting & Transplanting
You Won't Believe What Your Tree Is Doing For You!
July 15, 2021
Trees provide us with environmental and energy-saving benefits that we may have yet to even realize. Check out some of these amazing tree benefits.
Plant Health Care
Why Is Bark Falling Off My Tree (Oak, Pine, Ash, Maple)?
October 19, 2022
Why is your tree losing its bark? Should you be concerned? Click here to learn why bark is falling off your tree - including pine, oak and ash trees.
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