It is remarkable to consider that there is a 450 acre open space Arboretum in the center of Washington D.C. with gardens ranging from dogwood and boxwood collections to Asian plant collections.
The National Herb Garden is filled with edibles and domestic arts plants, including roses, sage, lemon balm, and lettuce beds.
The site is best known as a plant research center with dozens of greenhouses.
There's plenty to see in a half day, including the former Capitol columns that now sit perched on a 20 acre site inside the Arboretum.
The connifer garden is remarkable and not to be missed.