Perennials by Jojo - Weekly articles and discussions about perennials. Author is a professional gardener and propagator. - http://www.suite101.com/welcome.cfm/perennials/
Osteospermum.com - Information and photographs of this daisy plant that originates from South Africa. - http://www.osteospermum.com/
Gerbera jamesonii Adlam - Gerbera or African daisy - ecological, botanical, and horticultural information, with photos. - http://www.plantzafrica.com/plantefg/gerberajames.htm
Heleniums - All about this genus of hardy perennials. Information about growth in the wild, history, care and propagation, and an extensive list with descriptions and photos of species and cultivars. - http://www.samshrub.co.uk/helenium/
The Inca Collection - Information about this commercial line of alstroemeria cultivars marketed as a garden and patio plant, with photos and characteristics, care tips, and listing of garden centers selling them. - http://www.incalily.com/
Alstroemeria: The Inca Collection - Information about a commercial strain of Inca lilies, including photos, usage and care. - http://www.dwarfalstroemeria.com/
Quadriga: The PeonyPleasureDome - All about herbaceous and tree peonies: extensive list of cultivars with photos, care information, links to peony societies. - http://www.quadriga.net/
Perennials - Small collection of articles with tips on planting and care. - http://www.helpfulgardener.com/perennials/
Gardening with Perennials - Provides photos and facts for common species and lists plants used for specific purposes. Includes instructions on cultivation and care. [English, Spanish] - http://www.urbanext.uiuc.edu/perennials/
Floridata: Verbena bonariensis - Describes how to grow, description of habit and appearance, and natural history of plant. - http://www.floridata.com/ref/v/verb_bon.cfm
Chrysanthemums in Aberdeen - Addresses aspects of cultivation, exhibition, show results, and guest articles. - http://www.chrysanthemums.info
Botany.com Verbena - Information on growing from seed, distribution, appearance, growing conditions, and photos. - http://www.botany.com/verbena.html
Perry's Perennial Pages - University of Vermont professor offers experience and research on the subject of perennials. - http://www.uvm.edu/~pass/perry/
WiseAcre Gardens - North Country perennial and wildflower photographs with plant information, virtual postcards and wallpaper. - http://www.wiseacre-gardens.com/plants/perennials.html
Ian's Chrysanthemum Page - Tips and advice for growing, along with photographs, society details, and shows to visit. - http://web.ukonline.co.uk/i.payne/index.html
Australian Acacias - Information on growing acacias in south-east Queensland from seed. - http://www.uq.net.au/~zzlstein/acacia/acindex.html
Heritage Perennials - Questions and answers, locate a local dealer, and information on perennials. - http://www.perennials.com/