RHS Hampton Court Palace Garden Festival is an annual flower show, stretching over 31 acres and attracting around 120,000 visitors. Previously known as Flower Show. It is a celebration of gardening set in the historic grounds of Hampton Court Palace within easy reach of central London. Food & drink From delicious street food, grab-and-go options, coffee, ice cream and snacks, there is a variety of food on offer. Gluten-free, vegetarian and vegan options are available. You can enjoy a variety of talks and entertainment at the bandstands and stages around the showground.