However, the award comes as no surprise, as the historic park wins the flag for the fourth year in a row.

Among six other exceptional parks across the country, Rosalind Park is the only Victorian park to take the prize.

City of Greater Bendigo Parks and Open Space Manager Chris Mitchell said the award recognises the important work of City staff and brings with it a vast amount of prestige.

"The award is a great example of the City's commitment to provide quality open space for our residents and for visitors to the region," Mr Mitchell said.

"The City has made a considerable investment in Rosalind Park over many years and the Green Flag acknowledges and recognises this commitment."

City of Greater Bendigo Parks Coordinator Ozzie Hogan, said there were several aspects to the evaluation of the parks.

"The management of the park is important," Mr Hogan said, "as well as the usability of the space including signage, it also does customer evaluation which looks at community events and commercial activity."

"It also looks at cultural and themed activities, so our Chinese Gardens score quite well."

Mr Hogan said the prominence of grey headed flying foxes and the range of native and exotic vegetation in the Park also scores highly in the biodiversity and flora and fauna categories.

"It's amazing that we've won again," he said, "and to be the only Victorian Park is a huge credit."

Other 2021 winners were Queanbeyan Park and Queen Elizabeth II Park in Canberra, Chinchilla Botanic Parkland, Roma Street Parklands and South Bank Parklands in Queensland and Lochiel Park in South Australia.