For the third year running Barnwood Park and Arboretum has won a prestigious Green Flag from Keep Britain Tidy.
It is the sixth time that they have won the award which recognises the open space as being amongst the best of its kind in the country.
The award is the result of a partnership effort between the owners, Gloucester City Council, and The Friends of Barnwood Arboretum who help look after the area.
Councillor Sajid Patel, cabinet member for the environment, commented: " I am absolutely delighted with the award of the Green Flag for a third successive year. It means that local people have an open space of the very highest quality and standard. It is a fitting tribute to the hard work of the many volunteers who make up the local Friends group.
" The park and arboretum provides one of the vital 'green lungs' in the city and encourages people to get out and about and be active which has to be a great thing. To be active in such a beautiful area is an additional bonus."
Ron Keasley, who chairs the Friends group, said: " In order to keep winning a Green Flag we have to be able to demonstrate that we are not just doing what we have always done. We have to be able to show that there are always new things going on.
"So for example we plant bulbs and wildflowers to improve habitat for insects and to extend the season for bees as part of our contribution to Gloucester being the first Bee Guardian City in the country. We are also planning to create a wildlife pond in the arboretum, which is a Local Nature Reserve."
The park and arboretum between them cover an area of 14 acres. Amongst its many trees the arboretum boasts six giant Redwoods, a rare variegated Beech, a Wollemi Pine, first discovered in Australia as recently as the 1990s and a new disease resistant variety of Elm - part of a national British Elm Experiment.
More information about the Friends and the park and arboretum can be found at www.barnwoodarboretumpark.yolasite.com