the rhododendron species foundation is a non-profit organisation dedicated to the conservation, research, acquisition, evaluation, cultivation, public display, and distribution of rhododendron species. the foundation provides education relating to the genus; and serves as a unique resource for scientific, horticultural, and general gardening communities worldwide. visit our world-class botanical garden featuring 22 acres of rhododendrons, ferns, perennials, flowering trees, and shrubs.