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Celebrate Arbor Day

Celebrate Arbor Day by planting new trees or caring for your established ones in your landscape and community.

Spring is a great time to add trees to the landscape.  Select healthy trees suited to the environment and available space.

Start by calling the free underground utility locating service at 811 at least three days before digging in.  It can save you money and possibly your life.

Plant trees in a shallow hole at least two preferably three times wider than the rootball.  Dig the hole only as deep as the distance from the root flare, the place where roots join trunk to the bottom of the rootball.  Then backfill the hole with existing soil.  Water thoroughly as needed to encourage deep roots.

Protect new and existing trees from mowers and weed whips.  Plant perennial groundcovers under the tree or cover the soil with 2-3" of shredded bark or woodchips.  Be sure to keep the mulch off the trunk of the tree.

A bit more information:  Take a walk through your neighborhood, botanical garden or arboretum to look for champion trees. The American Forests Association is the organization that documents and records both native and naturalized tree champions in the United States.  Visit their website for details on measuring and reporting champion trees at americanforests.org   

Upcoming
Events & Webinars


August 6-16, 2026
Wisconsin State Fair
We Energies Energy Park, West Allis, WI
More information

August 29, 2026
Composting 102
Milwaukee Public Library - East Branch
Register here

Sept. 3, 2026
FREE WEBINAR: 
Tree Planting and Care
Register here

Sept. 11, 2026
Illinois State Master Gardener Conference
Rockford, IL
Register here

Sept. 12, 2026
2026 Knowledge in Bloom Conference
Urban Ecology Center, Milw., WI
Register here

Sept. 17, 2026
FREE WEBINAR:
Fall Landscape Care and Planting

Register here

Sept. 26, 2026
Pruning Hydrangeas & Other Shrubs
Pasquesi Home & Gardens, Lake Bluff, IL

Oct. 6, 2026
Upper Midwest Invasive Species Conference
La Crosse, WI
Register here

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MORE UPCOMING EVENT DETAILS 

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