I have grown one batch part in my garden and part in my allotment. In fact the best ones went in here and I put the extras in the lottie. Those in the allotment have done brilliantly and are about three times the size of the ones in the garden. Only difference is that there is much more sun on the allotment, whereas in the garden it is between two houses and so sun goes in and out during the day.
They seem to like lots of manure (can even cope if contaminated), so can use up all the iffy manure.
I got a bit impatient and picked one too soon, very tasty but the kernals not very full.