Cal's Plant of the Week Features a new plant every week, with photo, description, and cultural information. Previously featured plants can be selected by botanical or common name. Focus is on plants for greenhouse culture. http://www.plantoftheweek.org/ Plantoftheweek.org~Site InfoWhoisTrace RouteRBL Check
The Garden of Paghat the Ratgirl Pacific Northwest gardener presents essays for hundreds of species growing in her garden, with personal notes, history, cultural information, and photos for each. http://www.paghat.com/ Paghat.com~Site InfoWhoisTrace RouteRBL Check
DenverPlants.com This resource for gardeners in the Denver metro area includes a sizeable database of plants with photos and cultural information. http://www.denverplants.com/ Denverplants.com~Site InfoWhoisTrace RouteRBL Check
Plants National Database Online USDA database of botanical information, images, and links on plants in the USA, including crops and invasives. Search by name, geographic distribution, or other characteristics. http://www.plants.usda.gov/ Usda.gov~Site InfoWhoisTrace RouteRBL Check
HortiPlex Horticultural database with over 100,000 species and cultivars. Comments, ratings, and photos for many varieties supplied by members of the Gardenweb community. http://hortiplex.gardenweb.com/ Gardenweb.com~Site InfoWhoisTrace RouteRBL Check
Gardenline Guide to growing and caring for houseplants, vegetables, trees and shrubs. Also features common pests and a miscellaneous section. From the University of Saskatchewan Extension. http://www.gardenline.usask.ca/ Usask.ca~Site InfoWhoisTrace RouteRBL Check