Plant Information Links
Intrinsic Perennial Gardens and its owners are members/supporters of the following organizations or organizations:
The Biota of North America Program
Illinois Landscape Contractors Association
International Plant Propagators Association
The North American Rock Garden Society
The Perennial Diva is Stephanie Cohen
The Royal Horticultural Society
Timber Press: Books on Gardening and Horticulture
United States Department of Agriculture
The United States Patent Office