Established in 1820, this museum of living plants in D.C. includes a state-of-the-art Conservatory where visitors can explore flora from the tropics and deserts of the world.

The garden's 34 acres are packed with more than 13,000 varieties of plants from around the globe, making it one of the most diverse plant collections in the U.S.

At this 45-acre property, located just west of Boston, visitors can explore a variety of plant habitats, from brooks and wetlands to woodlands and coastal sand plains.

Just outside of Seattle, the reserve is 150 acres of natural woodlands, manicured gardens and the former Bloedel estate home. The Japanese maples truly steal the show each autumn.

This 37-acre property, the former Montecito estate of Polish opera singer and socialite Madame Ganna Walska, features an impressive collection of exotic plants.

The oldest continuously operated botanical garden in the nation also houses one of the largest collections of rare and endangered orchids on the planet.

On these 270 acres of tidal shoreline in mid-coast Maine, visitors follow granite pathways snaking through rustic woodland and manicured gardens.

Enjoy more than 1,200 acres of manicured gardens, woods and prairies, divided into 28 named gardens and 45 plant collections.

The warm climate of Florida allows tropical plants to be grown outdoors year-round. Visitors can see 450 species of rare and endangered plants from around the globe.

This Delaware garden maintains a living collection of native and historic plants from the Eastern temperate forests of the U.S., with a particular focus on the Appalachian Piedmont.