Thanks Anke, I'll take a look at that. Anyone know anything about peat soil?!!
I think they covered that in the book, but I didn't have too much time to look through it - especially as I then didn't buy it....

. It is 16 quid, free delivery on Amazon.
PS.: I have been in Scotland for over 20 years now - still not tried deep fried mars bars or pizza, and still can't stand (even the smell) of either vinegar or brown sauce on chips....