Sharing ideas, experiences, and knowledge about orchid growing. Founded 1984. Churchville, Pennsylvania, United States.
Central Pennsylvania Orchid Society
Regional organization for all people interested in orchids. Founded 1963. University Park campus (Penn State), Pennsylvania, United States.
Greater Philadelphia Orchid Society
Membership is open to anyone interested in learning more about orchids or sharing their knowledge of orchids. Philadelphia, Pennsylvania, United States.
Orchid Society of NW Pennsylvania
Promoting interest and offering expertise and education about orchids. Founded 1993. Erie, Pennsylvania, United States.
Orchid Society of Western Pennsylvania
Advancing the propagation, horticulture, and preservation of orchids. Founded 1954. Pittsburgh, Pennsylvania, United States.
Southeastern Pennsylvania Orchid Society
A diverse group of individuals who share a common interest in the plant family known as Orchidaceae. Founded 1947. Phoenixville, Pennsylvania, United States.