Michael helped to launch Swanley in Bloom on Saturday on a visit to the town centre.
He was accompanied by Cllr Victor Southern as he met local representatives and the team from Coolings Garden Centre, which sponsors the event.
Michael said: “I was delighted to help to launch Swanley in Bloom. This event has a very important role to play in making local people proud of their community and getting people interested in gardening. I look forward to hearing more about its progress in the coming months.”