[quote=Bob Hobden
Clay is good growing soil so why do you want to "get away" from it? True
it's a pain in the back for the gardener but the plants usually love it as
it holds on to nutrients and provides them for the plants. Just dig in lots
and lots of compost and use either lime or gypsum to turn it into a friable
soil.
Buying soil in is pot luck both in quality and soil born diseases.

If you had a very sandy soil then you would have problems.

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Regards
Bob
In Runnymede, 17 miles West of London[/QUOTE]

I know clay is fertile, but this is a royal pain. Its a plot around 3x4 meters, over the last 2 years i have dug in a few tonnes of manure and compost. It is still heavy clay. Also it is at the lower end of the garden and gets waterloged in winter.