There are many beautiful gardens to visit all around the United States.
If you are looking for a beautiful place to go on vacation why not visit a few?
There are many web sites you can visit to plan your adventure. I linked a few I liked.
BBC Travel
http://www.bbc.com/travel/slideshow/20130515-ten-north-american-gardens-worth-travelling-for
This site has a list of the top ten North American gardens worth traveling.