Membership of allotment associations is inexpensive. It allows you to make use of the onsite shop, as well as the help and support of the association.
Contact details for the allotment associations are displayed on the notice boards at each site. If your site has a shop, you can to join there when it is open.
Knowsley Road Allotments is a very small site and is covered by Cosham and District Allotments and Gardens Association, which is based at Salisbury Road Allotments nearby.