The Field of Dreams, which opened only two months ago in South Petherton, Somerset (HW, 15 July), was trashed by a man driving a tractor with a flailer. He wrenched up flowers and 150m of hedging as well as damaging trees.
Brian and Denise Herrick, who own the field and were on holiday at the time, said they were "absolutely shocked and utterly bewildered at such an organised and vindictive act". Neighbours saw the attacker, in a red Massey Ferguson, strike on 23 August at 8am.
"This will impact greatly on the flowers and wildlife," said Brian. "We have told the police. Almost 4,000 people have visited Barcroft Hall's Field of Dreams in the past two months, making it probably the most successful natural destination in the county."
He added: "Witnesses say that it was an old Massey Ferguson tractor with hedge cutter. The driver was aged about 30 with short dark hair. This tractor was spotted entering South Petherton earlier that morning."
Witnesses are asked to provide information online via www.barcrofthall.co.uk.