Heavy clay soil at my allotment

[Leon__xx]

We had same issue as a kid in our garden. My dad had us dig trenches throughout the area which were filled with pebbles etc making kind if pebble drainage. He then put a shit load of top soil in ( easy to do as we lived on a building site and he had 2 young sons to bring him as many barrow loads as he needed). It was a lot of work but it certainly made a huge difference to the drainage. Good luck!