These are examples of what can be achieved.
The art of growing on an allotment is to do little and often. It is a mistake to make hard work of a plot by rushing into it.
Clearing a neglected plot is best done in small increments. Over a period of time it is surprising how much will be accomplished. You can plant the area soon after clearance. Advice from other plot holders will help to avoid the pit falls and often tell you the history of your plot and what is likely to flourish in the soil.