Ann Higgins is the Chairman of Eston Residents' Association, which maintains the town's flower displays. Their work has been the subject of vandalism five times in five weeks.
The most recent came just two weeks before the judging of Northumbria in Bloom, which the group have previously won.
"I don't know why it's happening. I don't know what pleasure they get out of it, or whether it is just society today. But we won't give up.
"We will keep on doing it, because first of all we do it for the people and the community. The competition is the icing on the cake."
More top news
Durham Crown Court heard that one of the male victims suffered a triple-fractured jaw, while left lying in the gutter, unconscious.
Sunderland International Airshow got underway along the city’s seafront at Roker and Seaburn with a major flying programme from the RAF
The RAF Typhoon are performing on the Saturday and the Sunday of the 28th 2016 Sunderland International Airshow