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.
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.
Leaf & Needle Problems
What Are These Water Marks On My Tree Leaves?
May 11, 2023
Tubakia leaf spot on oak is often confused with oak anthracnose. One way to tell them apart is the timing of leaf spots. Learn more.
Leaf & Needle Problems
What’s Wrong with My Maple Tree and Its Leaves?
September 27, 2021
Does your maple tree look stressed? Look for maple dieback signs like small leaves and dying branches. Read to see if your maple tree is dying or how to save it.
Leaf & Needle Problems
What Are These Bumps on My Oak Tree Leaves?
June 1, 2022
Why are there bumps or round balls on oak tree leaves? Are these growths on oak leaves because of oak leaf gall or oak leaf blister? Learn what to do.
Property Maintenance & Landscaping
Landscaping in Rocky Soil
September 10, 2020
Planting in rocky soil is possible but takes a little extra prep work. Follow this step-by-step guide on how to prepare rocky soil for planting grass seed and trees.
Property Maintenance & Landscaping
Is It OK To Keep Outdoor Tree Lights On Year Round?
December 19, 2022
Can you safely use outdoor tree lights year round? Learn about types of lights for trees outside and how to safely use outdoor hanging tree lights year round.
Insect & Disease Issues
How to Get Rid of Spring Webworms or Eastern Tent Caterpillars
May 2, 2022
Spot spring webworms in your trees? Learn how harmful tent caterpillars are to trees and how to get rid of tent worms or tent caterpillars. You can usually remove them by hand and kill them by dropping them into water and dish soap. But if you have lots, use a tent caterpillar spray.
Davey Knowledge
Most Common Questions about Summer Tree Care
August 30, 2021
Wondering how to care for your trees in summer? Is it OK to plant trees in summer? Or, why does your tree have yellow leaves in August? Click to learn...
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