The site representatives carry out continual surveillance of the site, and all the plots on it. In principle this comprises of a more formal inspection no less than twice a year.
Site inspections look at the state of cultivation & maintenance of the plots to confirm that the minimum Cultivation / Inspection Guidelines are being met. These can be found by following the link above, and were set out in the Welcome Pack provided to you at the start of your tenancy.
If you have any queries concerning these Guidelines, or if you are struggling to meet these requirements, and to manage and cultivate your plot, then please get in touch with your Site Rep. for advice on how to proceed. For if they understand your circumstances they will be able to apply due consideration when carrying out an inspection.