5. US National Arboretum

The U.S. National Arboretum is a vast botanical garden and research facility located in Washington, D.C. It is operated by the United States Department of Agriculture's Agricultural Research Service. The arboretum spans over 400 acres and serves as a living museum with an impressive collection of plants, trees, and shrubs from around the world.

Established in 1927, the National Arboretum's mission is to conduct research, conservation efforts, and education related to plant life. Its extensive grounds are divided into various sections, each showcasing different plant collections and landscapes. Some of the notable features of the U.S. National Arboretum include:

National Capitol Columns: One of the most iconic features of the arboretum is the "National Capitol Columns." These Corinthian columns were originally part of the U.S. Capitol's East Portico but were replaced during a renovation in the 1950s. They now stand majestically in a beautiful setting, symbolizing the historical connection between nature and democracy.

Asian Collections: The arboretum houses a splendid collection of Asian plants and gardens, including a Japanese Garden, a Chinese Garden, and the Gotelli Conifer Collection.

National Bonsai & Penjing Museum: This museum showcases an outstanding collection of bonsai and penjing trees, some of which are centuries old. Bonsai is a traditional Japanese art of cultivating miniature trees, and penjing is the Chinese equivalent.

Azalea Collection: In the spring, the arboretum's Azalea Collection bursts into a riot of colors, attracting many visitors and photographers.

National Herb Garden: This section features various herbs, both culinary and medicinal, and serves as an educational resource for visitors.

Dogwood Collection: Home to over 80 species and hybrids of flowering dogwood, this collection offers a delightful display during the flowering season.

Fern Valley: A serene area featuring a diverse range of ferns and their allies, showcasing the beauty of these ancient plants.

In addition to these highlights, the National Arboretum also has a vast array of plant collections, including maples, hollies, magnolias, conifers, and more. It serves as an important research center, studying plant genetics, propagation techniques, and conservation efforts.

The U.S. National Arboretum is open to the public, and visitors can explore the grounds on foot, by car, or on guided tours. It offers a peaceful retreat from the city and provides an excellent opportunity to learn about the diverse plant life and horticulture. Whether you're a botany enthusiast, a nature lover, or just looking for a scenic spot to enjoy, the U.S. National Arboretum is a wonderful destination to explore in Washington, D.C.

Here are some photos from various time of my visits. 

Capital Columns*

National Bonsai & Penjing Museum

------=====================-----------------------------------------------------------------------------

*The decoration in front of the columns reads (see photo): These 22 Corinthian sandstone columns were among 24 that were part of the east central portico of the United States Capitol. Architect Charles Bulfinch oversaw construction of the portico using a design handed down by his predecessors. William Thornton and Benjamin Henry Latrobe. Completed in 1826, these columns provided the backdrop for presidential inaugurations from 1829 (Andrew Jackson) to 1957 (Dwight Eisenhower), and were the site of many speeches, protests and rallies. In 1958 the columns were dismantled to make way for the east front extension of the Capitol, which is adorned with marble reproductions. Restoration of the columns was made possible through the efforts of Ethel Shields Garrett and support from the Friends of the National Arboretum. Garden designer Russell Page selected and designed the new site which was completed and dedicated in 1990.