| 6th and Walnut Streets, Philadelphia |
| City of Philadelphia |
| Creutzburg Porch |
| Donald Pell Gardens |
| Gwynedd Preserve |
| Harford Park |
| Harriton House |
| Marsh Creek State Park |
| McKaig Nature Center |
| Mt. Cuba Center |
| Natural Lands' Saunders Woods Preserve |
| Paxon Hollow Country Club |
| Penn Medicine Radnor |
| Stoneleigh: A Natural Garden |
| The Willows |
| Tuscarora Lapidary Society |
| Winsor Trail |
