More public green spaces

Whilst we have a few nice beaches close by, I find it frustrating that we have barely any parks or free green spaces, despite being surrounded by fields and old disused clay lands.
Currently, I spend time walking through the small area surrounded by busy roads to the side of the big Charlestown roundabout, because there’s just hardly any nice parks with trees, flowers etc., in the area, especially where I can walk my dog.. Aside from Falmouth and Newquay’s boating lake/rose gardens, we often find Cornish public places are shabby and left to thorns, nettles and mud, especially those in and around St Austell. Polkyth park is great for children, but we would just like somewhere pretty and peaceful to walk and have picnics, with big trees and wildlife and maybe stony rather than muddy, churned up paths. I walk around and I see so many places that could be improved and made a real attraction to uplift the area and its people, with a bit of effort. I think it must be particularly heard for wheelchair users and pram pushers to have somewhere nice to go and have a stroll, with parking near by.
Other places all around the country seem to manage it, so why can’t we?