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.
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.
What You Need to Know about Watering Trees in Winter (Even in Colorado!)
January 16, 2018
Learn about if watering newly planted trees in the winter is needed, including if you should water trees in winter in Colorado.
Tree Selection Guide
Salt Tolerant Evergreen Trees (By Zone)
February 14, 2022
Winter salt can dry out evergreens, making their needles brown or yellow. Instead, select salt tolerant evergreens trees for the northeast region and each zone.
Tree Planting & Transplanting
What To Do With Christmas Trees After The Holidays
January 4, 2022
What To Do With Christmas Trees after the Holidays
Plant Health Care
What to Do About Palm Freeze Damage (and How to Protect Palms)
February 14, 2019
In some areas, palm trees do not get to soak up the sun all year round. Harsh winter weather can be tough on these tropical trees. Read on to learn how to help them bounce back.
Leaf & Needle Problems
What "Pine" Trees Lose Their Needles in Winter?
January 30, 2018
What pine trees lose their needles in winter, and when do pine needles stop falling? Over your pine shedding needles? Pick pine/evergreen trees that don't drop needles!
Tree Planting & Transplanting
Should Burlap or Wire Baskets Be Removed When Planting Trees?
October 18, 2022
Even if it's organic, you should remove as much of the burlap as you can. Then, only remove this much of the wire basket...
Tree Planting & Transplanting
What Plant Hardiness Zone Am I In?
December 15, 2022
Here's how to read planting zones and how to use plant hardiness zones, so you can get the best plants for your yard.
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