Rachel Lambert "Bunny" Mellon was an American horticulturalist, gardener, philanthropist, and art collector. She designed and planted a number of significant gardens, including the White House Rose Garden, and assembled one of the largest collections of rare horticultural books. Mellon was the second wife of philanthropist and horse breeder Paul Mellon.

The White House Rose Garden is a garden bordering the Oval Office and the West Wing of the White House in Washington, D.C., United States. The garden is approximately 125 feet long and 60 feet wide. It balances the Jacqueline Kennedy Garden on the east side of the White House Complex. It is commonly used as a stage for receptions and media events due to its proximity to the White House.