Invasive plants pose a serious threat to the biodiversity and visual character of gardens in Massachusetts.  Join Polly Hill Arboretum Collections Management Intern and certified arborist Matt Lobdell for a presentation covering invasive plant issues.  Learn how to identify and control these menacing plants.  Also, find out how you can become involved in efforts to control and eradicate the invasive plants that are threatening our most treasured natural areas.  Controlling invasive plants is a global concern and a growing field in professional horticulture.  $5 admission (free to PHA members).  For more information contact Karin Stanley at 508-693-9426, or email karin@pollyhillarboretum.org.