Nick wrote

Crop rotation as a method of disease control doesn't work on a
small scale, and it is pretty ineffective in other ways, too.
The conventional recommendation is never to plant within 10 yards
of where you did last year - and that's the distance of the
closest points. Get real in a suburban garden.


Or on an allotment. Even the chap on our site with 6 allotments, all but one
together, would have a job to manage that.
--
Regards. Bob Hobden.
Posted to this Newsgroup from the W of London, UK