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
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.
Tree Identification
Ash Tree Identification: Do I Have An Ash Tree?
January 27, 2022
What does an Ash tree look like? Learn how to identify an Ash tree by these common characteristics: ash tree leaves, bark, and common types of ash trees.
Trimming & Pruning
How Often to Prune Trees (Including Oak Trees)
February 14, 2022
How often do you need to trim oak trees? Learn how often to prune trees to and avoid deadly oak wilt.
Invasive Pest Alert for Illinois: Elm Zigzag Sawfly
May 1, 2025
The elm zigzag sawfly, an invasive species, is targeting elm trees in the Chicago region. Most trees recover from this pest, but weakened and stressed trees are at risk.
Lawn Care & Maintenance
Best Time To Overseed Lawn (Midwest, Northeast, South, West)
August 31, 2022
Here's the best time to overseed the lawn in the Midwest, Northeast, South and West. Reseeding lawns covers bare spots, and overseeding lawns helps with weeds.
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.
Trimming & Pruning
When to Trim Evergreens
March 4, 2021
Different evergreen species have different pruning requirements compared to others and trimming timeframes. Be careful to not over prune the plant and cause additional challenges like inviting diseases or pests.
Tree Planting & Transplanting
Helping Trees Recover from Transplant Shock
May 3, 2022
Leaves dropping after transplant? Not sure if your trees in shock or dead? Learn how to save a dying transplanted tree and about tree transplant shock recovery.
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