In warmer and more clement climates, perennials grow continuously. In seasonal climates, their growth is limited to the growing season. For example, in temperate regions a perennial plant may grow and bloom during the warm part of the year, with the foliage dying back in the winter. These plants are deciduous perennials. Regrowth is from existing stem tissue. In many parts of the world, seasonality is expressed as wet and dry periods rather than warm and cold periods. In some species, perennials retain their foliage all year round; these are evergreen perennials.
With their roots protected below ground in the soil layer, perennial plants are notably tolerant of wildfire. They are also less subject to extremes of cold in temperate and arctic winters, with less sensitivity than trees or shrubs.
More on [ Perennial plant ]

Alstroemeria: The Inca Collection - Information about a commercial strain of Inca lilies, including photos, usage and care.
Meta Description: [ A very long flowering period, copious blossoms and many striking flower colors is making the Inca Collection Alstroemeria assortment extremely suited as a garden and patio plant (perennial). ]
Australian Acacias - Information on growing acacias in south-east Queensland from seed.
Meta Description: [ Description here ]
Backyardgardener: Perennial Gardening - Information and resources for perennial gardening.
Meta Description: [ Information on your perennial plants. We provide gardenig tips on perennial flowers. ]
Botany.com Verbena - Information on growing from seed, distribution, appearance, growing conditions, and photos.
Meta Description: [ VERBENA plant identification description, photos, and information on potting, growing, propagation, varieties, and region of origin ]
Chrysanthemums in Aberdeen - Addresses aspects of cultivation, exhibition, show results, and guest articles.
Meta Description: [ Chrysanthemums in Aberdeen ]
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]
Meta Description: [ Gardening with Perennials is an excellent resource for gardeners. It features information about common perennials, bed preparation, planting and transplanting, and care and maintenance of perennials. ]
Gazebo Gardens - Garden tours and links, specializing in perennials.
Meta Description: [ Gazebo Gardens has over 40 display gardens
on 3 of 7 acres. We are open to the public from May 1 thru September 1.
Check our home page for gardening hints (which we update from time to time). ]
General Maintenance of Herbaceous Ornamentals - Includes information and pictures.
Meta Description: [ Many gardeners grow herbaceous plants to add color and texture to the spring, summer, and fall landscape ]
Gerbera jamesonii Adlam - Gerbera or African daisy - ecological, botanical, and horticultural information, with photos.
500
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.
Meta Description: [ Site dedicated to the growing Heleniums in temperate gardens with comprehensive descriptions of known cultivars and everything you need to know about how to grow and propagate them. ]
Heritage Perennials - Questions and answers, locate a local dealer, and information on perennials.
Meta Description: [ A terrific database of over 2000 perennials complete with images, featuring Heritage Perennials. ]
Ian's Chrysanthemum Page - Tips and advice for growing, along with photographs, society details, and shows to visit.
500
Osteospermums - Information and photographs of this daisy plant that originates from South Africa.
Meta Description: [ Osteospermum or Cape Daisy, a native to South Africa that loves a sunny position: Information on propagation, botany, pests & diseases, plant care and many photographs of this perennial flower ]
Perennials - Small collection of articles with tips on planting and care.
Meta Description: [ Perennials - Read helpful articles about perennials. ]
Perennials by Jojo - Weekly articles and discussions about perennials. Author is a professional gardener and propagator.
Meta Description: [ Weekly articles on perennials and varying aspects of growing them. ]
Perennials in Southern Vermont - Pictures of certain plants which thrive during certain months.
Meta Description: [ Perennial gardening site with plant descriptions, blooming charts and pictures of my garden in Southern Vermont. ]
Perry's Perennial Pages - University of Vermont professor offers experience and research on the subject of perennials.
Meta Description: [ information, links and research on herbaceous perennials ]
Quadriga: The PeonyPleasureDome - All about herbaceous and tree peonies: extensive list of cultivars with photos, care information, links to peony societies.
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.
Meta Description: [ A very long flowering period, copious blossoms and many striking flower colors is making the Inca Collection Alstroemeria assortment extremely suited as a garden and patio plant (perennial). ]
WiseAcre Gardens - North Country perennial and wildflower photographs with plant information, virtual postcards and wallpaper.
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