United States

Demonstration garden at the public library using drought-tolerant plants. Virtual tour, and listing of plants grouped by water requirements, with summary information for each.

Victorian show garden in the foothills of the Sierra Nevada, landscaped with iris, daffodils, wildflowers, shrubs and trees, and surrounded by an iris nursery.

Three-mile ribbon of park land along the banks of the Guadalupe River in downtown San Jose, featuring rose and rock gardens, sister city tributes, and a historic orchard.

Mediterranean gardens at Strybing Arboretum in Golden Gate Park presents mission and visitor information, detailed map, course catalog, and plant sale schedule.

Photos and information on gardens maintained at historic sites around the state.

Eight acres of marsh, woodland, meadow and vegetable plots located in Ridgefield.

Includes an English and a Scottish garden, Italian shrine, Oriental garden, a cabin garden, lotus and wetland gardens, and a rhododendron garden. Located in Manchester.

Estate garden in Sarasota aims to understand and conserve tropical plants. Site offers details on plants, exhibits, membership and special events.

Facility in West Palm Beach offers gardens and programs with horticultural and botanical information about South Florida's unique plants and environment.

Native plant garden in Decatur featuring many plants saved on rescue missions throughout the Southeast, most notably a large fern collection. Plant listings and information about visiting, classes, and events.

Department of Parks and Recreation provides descriptions and visitor information for several area botanical gardens: Foster, Ho`omaluhia, Koko Crater, Lili`uokalani, and Wahiawa.

Former nursery in Rockford features a combination of plants native to the midwest and from around the world. Photo gallery, event calendar, visitor information.

The White River Gardens at the zoo combine gardening ideas and design and plant information into a botanical attraction. What's blooming now, and archive of previous entries.

Offers an opportunity to experience the wildflowers of the Great Plains in cultivation, with hundreds of labeled varieties of native wildflowers, shrubs, grasses, and trees. Overview with photos, history, design ideas, and calendar of events and classes.

Nature center and park in Camden, with nature trails and gardens open to the public free of charge. Overview of programs and gardens, with calendar and information on wildlife and native plants.

Topiary and flower gardens plus a nature walk and historic home. Includes events calendar, history and rental information.

Operated by Worcester County Horticultural Society, this garden features several distinctive theme areas. Information about visiting, workshops and events, history, and membership.

Educational facility that supports and integrates teaching, research, and public service. Contains brochure, information about programs, events, and volunteering, and a newsletter.

On this suburban estate in Montclair, formal gardens featuring a choice collection of rhododendrons, azaleas, and other broad-leaved evergreens extend from a turn-of-the-century Italianate villa. History, visitor information, calendar of events.

Gardens tended by the park commission include the naturalistic Leonard J. Buck Garden, fragrance, rose, and perennial gardens, and an arboretum.

County park facility in Freehold, featuring hundreds of species, cultivars, and varieties of ornamental trees and shrubs. Summary and visiting information.

Famous public garden in the northwest Bronx along the Hudson River, with flower gardens, alpine house, greenhouses, and cultural center. Visitor information, events, membership, volunteering opportunities.

Holds, manages, protects, and enhances the living botanical collections and the natural areas and gorges of Cornell for the benefit of the community. Information about collections, visiting, education, and publications.

The crown jewel of Duke University, renowned both for landscape design and the quality of horticulture. Information about visiting, events, and gardening, and a section just for kids.

Features a diverse collection of plants adapted for landscape use in the southeastern United States, with a focus on hardy shrubs and trees. Full-featured website with details and photos for many of the plant holdings. Piedmont.

Attraction in historic Silverton, featuring water features, garden art, wetlands, a rediscovery forest, a kids' garden, and a house designed by Frank Lloyd Wright. Photos, news, information about events and classes.

Collection housed in a garden and greenhouse, embracing both species and cultivars. General information, history and mission.

Includes rose and rhododendron gardens, a memory garden, Leach Botanical Garden, and community gardens. Photos, descriptions, visiting information, and event schedules.

Pittsburgh institution with indoor and outdoor collections. History, photo tour of the gardens, database of species, and information about research, educational classes, and special exhibits and events.

Historic home and gardens in Philadelphia. Information on upcoming events, volunteering, summer nature program, and history.

The lushly planted botanical gardens accompanying this zoo in Columbia are arranged into several climatic and theme gardens. Descriptions, photos, and visitor information.

The house and garden where George Washington lived, now an educational tourist attraction. Formal and plantation gardens. Visitor information and educational pages.

Historic arboretum of 19th-century plantings at a Lynchburg public cemetery. History, and a horticulture and wildlife guide.