- Alstroemeria: The Inca Collection - Information about a commercial strain of Inca lilies, including photos, usage and care.
- Australian Acacias - Information on growing acacias in south-east Queensland from seed.
- Backyardgardener: Perennial Gardening - Information and resources for perennial gardening.
- Botany.com Verbena - Information on growing from seed, distribution, appearance, growing conditions, and photos.
- Chrysanthemums in Aberdeen - Addresses aspects of cultivation, exhibition, show results, and guest articles.
- Floridata: Verbena bonariensis - Describes how to grow, description of habit and appearance, and natural history of plant.
- 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]
- General Maintenance of Herbaceous Ornamentals - Includes information and pictures.
- Gerbera jamesonii Adlam - Gerbera or African daisy - ecological, botanical, and horticultural information, with photos.
- 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.
- Heritage Perennials - Questions and answers, locate a local dealer, and information on perennials.
- Ian's Chrysanthemum Page - Tips and advice for growing, along with photographs, society details, and shows to visit.
- Osteospermum.com - Information and photographs of this daisy plant that originates from South Africa.
- Perennials - Small collection of articles with tips on planting and care.
- Perennials by Jojo - Weekly articles and discussions about perennials. Author is a professional gardener and propagator.
- Perennials in Southern Vermont - Pictures of certain plants which thrive during certain months.
- Perry's Perennial Pages - University of Vermont professor offers experience and research on the subject of perennials.
- Quadriga: The PeonyPleasureDome - All about herbaceous and tree peonies: list of cultivars with photos, care information, links to peony societies.
- Suite101: Perennial Plants - Collection of articles on care, uses and gardening for perennial plants, by feature writers and other contributors.
- 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.
- WiseAcre Gardens - North Country perennial and wildflower photographs with plant information, virtual postcards and wallpaper.
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