The United States has some of the finest botanical gardens, arboretums and conservatories in the world — from the Portland Japanese Garden, regarded as one of the most authentic Japanese gardens outside Japan, to the Desert Botanical Garden in Phoenix, where 140 acres of Sonoran Desert flora put saguaros and agaves in their proper ecological context. These guides cover gardens across the country with practical information on ticket prices, opening hours, parking and what makes each one worth the visit. They are organised by region to help visitors plan, whether they’re looking for a garden near a specific destination or want to build a garden visit into a broader itinerary.
Northeast and Mid-Atlantic
- Boston Public Garden, Massachusetts: practical visitor guide — America’s first public botanical garden, established in 1837 next to the Boston Common, with a lagoon, Swan Boats, formal Victorian flower beds and the famous bronze ducklings from the children’s book Make Way for Ducklings.
- New York Botanical Garden, Bronx: practical visitor guide — a 250-acre garden in the Bronx with a Victorian glasshouse, a rose garden, a rock garden and one of the largest tracts of original New York forest remaining, with seasonal shows in the Enid A. Haupt Conservatory.
- Nemours Estate, Delaware: parking, prices, hours and visitor guide — the former du Pont family estate near Wilmington, with a 77-room Louis XVI-style mansion and the largest formal French garden in North America, recently reopened after a major restoration.
- Winterthur Museum, Garden and Library, Delaware: practical visitor guide — Henry Francis du Pont’s former country estate with the finest collection of American decorative arts in the world and 60 acres of naturalistic gardens that are among the finest on the East Coast, at their most spectacular in spring.
- Dumbarton Oaks, Washington DC: ticket prices, hours and visitor guide — historic Georgetown estate with some of the finest formal gardens in the American northeast, a significant Byzantine and Pre-Columbian art collection and the setting for the 1944 conference that laid the groundwork for the United Nations.
- US Botanic Garden, Washington DC: practical visitor guide — a free botanical garden at the foot of the Capitol steps, with a restored Victorian conservatory housing tropical, desert and medicinal plant collections and a renovated outdoor garden.
- Phipps Conservatory and Botanical Gardens, Pittsburgh: practical visitor guide — a magnificent Victorian glasshouse complex in Schenley Park with seasonal flower shows, a tropical forest conservatory and one of the most sustainably designed public buildings in the United States.
Southeast
- Cypress Gardens, South Carolina: ticket prices, hours and visitor guide — a former rice plantation near Charleston where ancient bald cypress trees rise from a blackwater swamp, best explored by flat-bottomed boat, and a filming location for the movie The Notebook.
- Atlanta Botanical Garden: visitor guide with ticket prices, hours and must-know tips — a 30-acre garden on the edge of Piedmont Park with a Canopy Walk through the tree canopy, a Japanese garden, a tropical conservatory and popular evening light installations.
- Bellingrath Gardens, near Mobile, Alabama: practical guide with hours and prices — a 65-acre estate garden on the Fowl River south of Mobile, at its most spectacular during the azalea season in March and April, with a historic home filled with antebellum decorative arts.
- Rock City Gardens, Chattanooga, Tennessee: complete guide with prices and hours — a natural rock formation garden atop Lookout Mountain above Chattanooga, with ancient sandstone outcroppings, native wildflower plantings and panoramic views said to extend across seven states on clear days.
- Memphis Botanic Garden: ticket prices, hours and visitor tips — 96 acres of themed gardens in East Memphis including a Japanese garden, a sensory garden and a sculpture trail, at its best in spring when the dogwoods and azaleas bloom.
Florida
- Edison and Ford Winter Estates, Fort Myers: visitor guide — the neighbouring winter estates of Thomas Edison and Henry Ford on the Caloosahatchee River, with Edison’s botanical research garden — containing over 1,000 plant species he studied for potential rubber production — as the horticultural highlight.
- Flamingo Gardens, near Fort Lauderdale: practical visitor guide — a 60-acre botanical garden and wildlife sanctuary in Davie with the largest collection of Florida native trees in the state, a free-flight aviary and a rare animals exhibit housing Florida panthers and alligators.
- Mounts Botanical Garden, West Palm Beach: parking, prices, hours and visitor tips — Palm Beach County’s oldest and largest botanical garden, free to enter, with over 20 themed gardens covering tropical and subtropical plants suited to the South Florida climate.
- Dunlawton Sugar Mill Gardens, Port Orange: complete guide with prices and hours — free botanical gardens surrounding the ruins of a 19th-century sugar mill near Daytona Beach, with dinosaur sculptures scattered through the sub-tropical planting as an unlikely but charming addition.
- Ormond Memorial Art Museum and Gardens, Ormond Beach: complete guide with prices and hours — a free sculpture garden and art museum in a wooded setting in Ormond Beach, with Spanish moss-draped oaks, a reflecting pool and a small but well-curated gallery of Florida art.
- Plan your visit to the Naples Botanical Garden in South-West Florida.
Midwest
- Lurie Garden, Chicago: ticket prices, hours and visitor tips — a five-acre naturalistic garden within Millennium Park, designed by Piet Oudolf and at its most spectacular in late summer when the perennial planting reaches full height — one of the finest examples of the New Perennial planting style in America.
- Lincoln Park Conservatory, Chicago: practical visitor guide — a free Victorian glasshouse in Lincoln Park, one of the oldest conservatories in the United States, with palm houses, a fern room and orchid collections in a beautifully maintained 19th-century structure.
- Garfield Park Conservatory, Chicago: parking, prices, hours and visitor tips — one of the largest conservatories in the world, designed by Jens Jensen in 1907, with vast interconnected glasshouses covering ferns, palms, cacti and aroids in a west side park that most Chicago visitors never reach.
Texas
- Texas Discovery Gardens, Dallas: ticket prices, hours and visitor tips — an entirely organic botanical garden in Fair Park, Dallas, with a tropical butterfly house, native Texas wildflower meadows and heirloom vegetable gardens demonstrating sustainable gardening techniques suited to the Texas climate.
- Fort Worth Botanic Garden: visitor guide with prices, hours and must-know tips — the oldest botanic garden in Texas, with 23 specialty gardens including a Japanese garden with a tea house, a fragrance garden and a rose garden containing over 3,500 plants.
- Mercer Botanic Gardens, Houston: practical guide with hours and prices — a free public garden north of Houston run by Harris County, with extensive native Texas plant collections, butterfly gardens and woodland trails along Cypress Creek.
- Houston Arboretum and Nature Center: practical guide with hours and prices — a 155-acre urban nature sanctuary within Memorial Park, free to enter, with trails through prairie, woodland and pond habitats and a nature centre covering the ecology of the Texas Gulf Coast.
Mountain West and Southwest
- Desert Botanical Garden, Phoenix: visitor guide with ticket prices, hours and must-know tips — 140 acres of Sonoran Desert flora in Papago Park, with trail networks through towering saguaros, agaves and ocotillos, and a programme of evening events that make it one of the best Phoenix attractions after dark.
- The Arboretum at Flagstaff: practical guide with hours, prices and tips — the highest arboretum in the United States at 7,150 feet, with collections of high-altitude native plants, a raptor free-flight programme and nature trails through ponderosa pine forest.
- Santa Fe Botanical Garden, New Mexico: practical visitor guide — a high-desert botanical garden on Museum Hill showcasing the plants of the Sangre de Cristo Mountains and the Chihuahuan Desert, with a steppe garden, an orchard and exhibition spaces making it a natural complement to Santa Fe’s Museum Hill museums.
- Red Butte Garden, Salt Lake City: visitor guide with ticket prices, hours and must-know tips — a 100-acre garden on the foothills above Salt Lake City with views of the Wasatch Range, natural area trails, a floral walk and a summer outdoor concert series that is one of the best-attended events in Utah.
- Denver Botanic Gardens: hours, ticket prices and visitor tips — a 24-acre urban garden in the Cheesman Park neighbourhood, with a tropical conservatory, a rock alpine garden and an outstanding collection of plants native to the Rocky Mountain region, alongside a popular summer outdoor concert programme.
Pacific Coast and the Pacific Northwest
- Descanso Gardens, Los Angeles: visitor guide with ticket prices, hours and must-know tips — 150 acres of camellia, rose and oak woodland gardens in the La Cañada Flintridge foothills, a restorative escape from the city’s traffic that consistently surprises visitors who arrive expecting little more than a pleasant park.
- Portland Japanese Garden: visitor guide with ticket prices, hours and must-know tips — widely regarded as one of the most authentic Japanese gardens outside Japan, with eight distinct garden styles across 12 acres above the city in Washington Park.
- International Rose Test Garden, Portland: visitor guide with hours and admission information — the oldest continuously operating public rose test garden in the United States, with over 10,000 rose plants and panoramic views toward Mount Hood on clear days, free to enter.
- Hoyt Arboretum, Portland: ticket prices, hours and visitor tips — a 190-acre arboretum in Washington Park with over 2,300 species of trees from around the world, 12 miles of trails and one of the largest collections of conifers in the United States, free to visit.
- Lan Su Chinese Garden, Portland: practical guide for first-time visitors — a Ming Dynasty-style walled garden in Portland’s Old Town Chinatown, built with materials and craftspeople from Suzhou (Portland’s Chinese sister city), with a koi lake, covered walkways and a traditional tea house in a single city block.
Planning a US garden visit
Most American botanical gardens are open year-round, but spring (March to May) is the peak season for flowering displays, particularly at gardens in the Southeast — the azalea and dogwood season at gardens like Bellingrath and Cypress Gardens typically peaks in late March and early April. The desert gardens of the Southwest are best visited from October to April, before summer heat makes outdoor exploration uncomfortable. Winter conservatory visits — the Phipps, the Garfield Park Conservatory, the Lincoln Park Conservatory — are particularly rewarding in cold-climate cities when outdoor gardens are dormant. Many of the gardens listed here are either free to enter or covered by American Horticultural Society reciprocal membership, which gives free or discounted access to over 300 gardens across the country — worth checking before purchasing individual tickets.