Get ready for spring and share your native perennials! Celebrate Earth Day at the Glen Helen Nature Preserve and buy or swap perennials from other gardners in the area. We are looking for native plants including: Native Forbs, Native Grasses, Native Ground Cover, Native Shrubs. No invasives please--get in touch with any questions! Contact: 937-767-9490 (TLT office) or email email@example.com.