Rhododendron Species Foundation - Association sells tropical and temperate species of rhododendrons to association members and others.
Singing Tree Gardens - California seller of hybrid rhododendrons as well as some azaleas and ornamental trees.
Species Unlimited - Western Washington nursery specializing in propagating and growing species rhododendrons and azaleas.
The Bovees Nursery - Oregon specialists in vireya rhododendrons of Indonesia and Southeast Asia and their hybrids.
Wrenhaven Nursery - Specializes in field-grown hybrid and species rhododendrons and azaleas including varieties suitable for bonsai. Located in British Columbia.
