Green Industry Calendar of Events

PLNA is pleased to produce and promote continuing education opportunities for Pennsylvania Certified Horticulturists (PCH), Sustainable Landscape Certification (SLC) professionals, and other green industry professionals.

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Upcoming Events
Wednesday, May 27, 2026
Native Plants of Summer - Mt. Cuba Center (In-Person) 5/27/2026 » 7/1/2026 Location: Hockessin, Delaware Time: 10:00 AM Export to Your Calendar
Friday, May 29, 2026
Planning for a Garden Transition - Mt. Cuba Center 5/29/2026 Location: Hockessin, Delaware Time: 1:00 PM Export to Your Calendar
Saturday, May 30, 2026
Propagation Workshop: Expand Your Garden with Seeds - Mt. Cuba Center 5/30/2026 Location: Hockessin, Delaware Time: 10:00 AM Export to Your Calendar
Saturday, June 6, 2026
Native Plants of Summer Tours - Mt. Cuba Center (In-Person) 6/6/2026 » 6/27/2026 Location: Hockessin, Delaware Time: 10:00 AM Export to Your Calendar
Monday, June 29, 2026
Oak Wilt, Bacterial Leaf Scorch, or Something Else? - Penn State Extension (Webinar) 6/29/2026 Time: 12:00 PM Export to Your Calendar
Friday, July 10, 2026
Pennsylvania Invasive Species: Wavyleaf Basketgrass - Penn State Extension 7/10/2026 Export to Your Calendar
Wednesday, September 2, 2026
Native Plants of Fall - Mt. Cuba Center (In-Person) 9/2/2026 » 10/7/2026 Location: Hockessin, Delaware Time: 10:00 AM Export to Your Calendar
Wednesday, September 9, 2026
Hidden Canopies: Exploring Underutilized Trees and Shrubs - Penn State Extension (Webinar) 9/9/2026 Export to Your Calendar
Saturday, September 12, 2026
Native Plants of Fall Tours - Mt. Cuba Center (In-Person) 9/12/2026 » 10/10/2026 Location: Hockessin, Delaware Time: 10:00 AM Export to Your Calendar
Wednesday, October 7, 2026
Decay Demystified: Understanding Mushrooms and Tree Decay - Penn State Extension (2-Part Webinar) 10/7/2026 » 10/14/2026 Export to Your Calendar