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.
Plant Health Care
Why You Should Fertilize Flowering Trees?
August 12, 2021
Fertilizing flowering trees can enhance your landscape aesthetics. By using a slow-release fertilizer it encourages blooms while increasing healthy growth. Fertilization strengthens trees by promoting a healthy root system, learn more.
Davey Knowledge
Why Some Trees Recover After Drought and Others Don’t
July 24, 2026
Will your tree recover after drought? Learn why some trees rebound while others continue to decline, plus the signs of recovery and when to call a certified arborist.
Davey Knowledge
Climate Change On Trees
June 16, 2022
How are forests affected by climate change? Learn more about the effects of climate change on tree species so you can better care for your trees.
Tree Selection Guide
Best Oak Trees To Plant for Color
September 2, 2021
Here are some common oak tree varieties that can give you an amazing tree for shade, great texture and interest, and amazing fall color.
Davey Knowledge
When Do Tree Leaves Come Back In Spring?
March 21, 2022
In spring, when exactly do trees leaf out and bloom? Click here for the leaf out dates in your region - and learn why your tree is not growing leaves in spring.
Plant Health Care
What Time of Year Do Pine Trees Drip Sap (and Can I Stop It?)
February 21, 2022
What time of year do pine trees drip sap, and how much pine sap is excessive? If it's golden brown, no need to stop tree sap from running or sapping. That's normal in spring. But if you see your pine tree oozing white sap (or a white substance on pine trees), there's a problem. Click here for more.
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
Trees and Climate Change: What a Warmer Winter Means for Spring Growth
January 23, 2026
Warmer winters are disrupting tree dormancy, causing early bud swell and frost damage. Learn the signs and how to protect your trees this season.
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