Hi Charles
A friend of mine has taken on a new allotment and when trying to harvest her new potatoes, she discovered her foot sank about 8″ as the ground was full of water by not draining away. The rest of the plot had drained as it is on a long slope. I had a look at it today and it seems the previous tenant landscaped the very long allotment but must have taken off the top soil of a lower section to add to the new upper section leaving the yellow clay sub-soil with a very thin layer of top soil where the potatoes are planted. She is wondering what to do. I have suggested double digging to break up the sub-soil but not sure what to advise for the thin layer of top soil. Should she buy bags of compost or top soil as well as adding manure for next year?
Big D