For heavy pruning (branches over 1 inch in diameter), most trees are best pruned in late winter or early spring before the sap starts to flow. The major exception is oaks, which should be pruned in late summer or while dormant. This is a preventative measure aimed at stopping the spread of oak wilt disease. Oak wilt is spread by insects that are attracted to the sap of wounds. Make sure all cuts are clean and done by the proper method, using sharp tools. With the exception of stone fruits, it is not necessary to cover the pruning wounds.
PLEASE NOTE: In the autumn of 1995, we hatched the idea for a free, local gardening publication. The following spring, we published the first issue of Michigan Gardener magazine. Advertisers, readers, and distribution sites embraced our vision. Thus began an exciting journey of helping our local gardening community grow and prosper.
After 27 years, nearly 200 issues published, and millions of copies printed, we have decided it is time to end the publication of our Print Magazine and E-Newsletter.
We will continue to update our Website with articles and enter current gardening events in our website Event Calendar. All the best wishes for 2024 and beyond.