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
Seasonal Boxwood Shrub Care
December 14, 2023
Here are some tips for how to care for boxwood shrubs so you can keep these hedges healthy and tidy all year long.
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.
Tree Selection Guide
Best Trees For Fence Lines
May 25, 2023
Here are some of our recommendations for best trees for a fence line.
Tree Planting & Transplanting
Plants Under Trees: Protect the Root Flare
September 18, 2025
Plant under trees without smothering the trunk. Choose clumping, shallow‑rooted companions, keep the root flare visible, and build a breathable mulch ring.
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.
Tree Planting & Transplanting
Is it Safe to Plant Trees in Summer?
August 4, 2021
You may be tempted to plant trees in the summer when the sun is shining, but is summer a good tree planting time? Follow these rules for best times to plant a tree so you can give your tree a solid start.
Tree Planting & Transplanting
Plant These Seedless Maples Without Helicopter Seeds
April 11, 2022
Looking for a maple tree without helicopter seeds? Check out this list of seedless maples! And learn if the sienna glen maple vs autumn blaze maple is better!
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