A record 20 gold medals, 36 silver-gilts, 19 silvers and 1 bronze were awarded to communities selected from over 1,000 entries.
More than 500 community and gardening champions celebrated at the awards ceremony in Scotland hosted by TV presenter Rachel De Thame.
A number of discretionary awards were also given to communities and individuals who demonstrated excellence in their commitment to the campaign.
The judges assessed against three key criteria: horticultural achievement, community participation and environmental responsibility.
Chair of the Britain in Bloom UK judging panel Roger Burnett said: "My fellow judges and I noticed this year that many communities are facing even greater challenges than ever before because of financial conditions, political changes, civil unrest and that’s not even to mention the unpredictable British weather!
But we are extremely pleased to report how we have seen many communities using RHS Britain in Bloom as a solution and really pulling together as a group of volunteers, as communities, to continue to move forward, facing down everything from a tornado, to damage from rioting. No matter what the challenge, these finalists were confronting it with determination and spirit and making their communities better places in which to live."
The Britain in Bloom awards are supported by Anglian Home Improvements.
The full list of winners is available here.