Perennial Plant Association

The Perennial Plant Association (PPA) is a professional organization dedicated to promoting the use and understanding of perennial plants—plants that live for multiple years—to gardeners, landscapers, and industry professionals. They provide education, research, and resources about the benefits, cultivation, and design of perennials, helping to support sustainable and attractive landscapes. The PPA also honors outstanding perennial varieties through annual awards, encouraging innovation and excellence in the development of these plants for a diverse range of environments and purposes.