My vision for a resilient community garden is a wildlife allotment, a covered social space, and a community orchard, which includes nut trees and edible shrubs. I have started researching nutteries in the UK, there only seems to be 2 marked on Google Maps (and one in Ireland).
The two are Smallcombe Nuttery managed by Transition Bath, and The Nuttery in Newnham, which appears to be a community garden.
I will keep looking. If you know of any nutteries, community or commercial, do let me know.