Rubble and clay
When we moved to the Sticks in 1988 it had recently undergone major modifications and the previous owners had dumped the building rubble just where we wanted to build our vegetable garden. During our first winter in residence, when the weeds had died back and we could more easily see what we were doing, we set about clearing the rubble. It was a time consuming and back breaking job but we realised the rubble was actually useful. The plot was on a slope, falling sharply at the lower edge, and by shifting the rubble from the upper to the lower sections we could build up a base which would provide reasonable drainage and reduce the severity of the incline at the lower edge.