The festival featuring elaborate floral displays and community parades in the UK is the Notting Hill Carnival. This vibrant event celebrates Caribbean culture through lively processions adorned with stunning costumes, music, and dance. Participants display intricate floats decorated with flowers and vibrant colors. The carnival fosters community spirit, cultural pride, and togetherness, as people from diverse backgrounds come together to celebrate. In addition to floral displays, delicious Caribbean cuisine is also showcased, making it a feast of both visual and culinary delights.