The Sustainable Landscapes Certification (SLC) application includes the initial exam and one retest. Any retests needed beyond this will require paying the retest fee for each attempt.
Need to mail it in? Print a copy of the PLNA retest form to send with payment.
Remember Me
8/25/2025PA Center for Plant Excellence Requests Grant Proposals
7/24/2025In Memoriam: Glenn E. Hively
6/5/2025In Memoriam: Thomas K. Eichenlaub
10/1/2025 » 10/24/2025Soil Science - Morris Arboretum (Hybrid)
10/22/2025 » 10/23/2025Pesticide Applicator Short Course - Penn State Extension (In-Person/Lewistown)
10/23/2025Introduction to Garden Sustainability Class - Scott Arboretum (In-Person)
