I was reading the posting by ducky2108 - welcome by the way.
It put me in mind of something I saw on the UK local news last week, I think on the Isle of Wight if memory serves. There is a mamouth shortage of allottments there and a huge waiting list for people wanting plots. An idea the local community have come up with there is to rent gardens. They approach older/retired people with large gardens, who enjoy their gardens but are unable to maintain them. Can't remember if it was initially by fliers to get interest or a meeting. Anyway, for an agreed annual fee the householder rents their garden and in return gets to enjoy the garden and also enjoy a few fresh vegetable etc. in return. Apparently it is working very successfully and it seems that everyone is a winner.
It could be an idea for the likes of ducky and also others is town and villages with older residents living in older style houses with large gardens.
Just a thought anyway.
Kate