"Greg William" wrote in message

Every where I have put this "soil", heaps of onion weed has come up
and is
thriving!

I have notified the supplier of the problem,to see what they have to
say,but what is the best way to get rid if it?

I have used roundup ,and ended up killing some other plants as well
as the
onion weed

I know this is going to sound silly, but one of the books I have says
that a slice of tomato placed directly on top of the onion weed kills
it.