Although rock dust is undoubtably beneficial it would seem to me a bit of a red herring in relation to Granny’s other problems, particularly with perennial weed. I think it is extremely difficult for inexperienced gardeners to get rid of them by your methods and they often give up in despair. I know your methods work and am full of admiration for the wonderful results you get Charles and your fantastic soil- the direct result of your organic methods.
I wish ‘Granny’ all the best with her allotment and her weeds!
