Kemper Center - Plantfinder page for one of the plants growing at the Missouri Botanical Garden, with usually one or more photos, horticultural information, and noteworthy characteristics. (zone 5 to 9) (14 photos)
Rainy Side Gardeners - Plant profile compiled by two gardeners in the Pacific Northwest. Includes propagation and pruning methods, and commentary. (zone 5-8) (6 photos)
Rare Find Nursery - Catalog detail page with description and horticultural information. (zone 5-8) (2 photos)
Rob's Plants - Plant profile with basic horticultural information and often personal observations. (4 photos)