Does anyone know of a source of this stuff in the SW London/Surrey area?
My allotments are in Chessington(Hook). Horse manure is easy to get, but not cow/pig/whatever dungy gear.
Get the yellow pages out and look up Farmers... find one near you and give them a call!
If the horsy stuff is readily available,get a load and if you have the space,cover it for a year with a heavy tarpaulin and in a years time you will have some well rotted stuff to die for ;D
Del: If you can get horse....go for it.....don't turn your nose up at a good dung pile.....Go for straw content if you get the option.