Posted: 02/09/2015 at 22:35
The way to improve clay soil is often discussed here; digging out and replacing is hard work and very expensive. I guess that you would need to remove about 2 - 2'6 and buy in top soil. You can improve the clay instead for long lasting, high quality results. Clear the bed and dig in as much muck as you can get and coarse grit,too. Well rotted manure, any animal, garden compost, seaweed. Some councils sell large sacks of composted garden waste and some horse owners give away stable muck. You cannot really have too much. Dig and break up and mix, leave it open to frosts and dig and mix some more.
I can't comment on fruit growing because I don't grow any but I know raspberries dislike clay