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.
Plant Health Care
Are You Overwatering Your Mature Tree? Smart Watering Tips for Established Trees
May 15, 2026
Overwatering is one of the biggest risks to mature trees. Learn how to spot the signs, adjust watering frequency, and protect your tree's long-term health.
Leaf & Needle Problems
Why Is My Tree Not Blooming?
April 9, 2020
Why is my tree not blooming? Get all the details on why: how trees know it’s time to grow in spring, what to do once your tree blooms, tree leaf out schedule for each region and what to do if you have a late bloomer.
Plant Health Care
How to Tell if Your Brown, Yellow or Orange Cedar Tree is Dying
January 31, 2019
Are you seeing brown, yellow or orange needles on your cedar tree? If your cedar tree’s not living up to its “evergreen” name, keep reading to find out why.
Plant Health Care
What is the Definition of Plant Health Care?
June 3, 2021
The best way to keep trees healthy? Plant health care. Learn what plant health care is and how it benefits your trees.
Leaf & Needle Problems
What Happens If Trees Bud Too Early?
February 28, 2022
Because of the warm winter, your trees may be budding already. Is it bad if trees start budding in winter? Learn if they'll bloom again and how to protect them.
Insect & Disease Issues
Verticillium Wilt Threatens Japanese Maples
November 9, 2023
Here are the first signs and symptoms of verticillium wilt on your Japanese maples and what you can do for treatment and stop it from spreading.
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