On Fri, 17 Oct 2008 21:00:52 +0100, "Pete C"
wrote:

Tonight, Tony Buckland was using horticultural grit on the top of some pots
of bulbs. What is the difference between this grit and any other
grit/gravel?


Best that you get some sort of guarantee that it's been washed free
from contaminants. It *might* have come fresh from some beach
somewhere and could be somewhat salty. There are other less pleasant
alternatives.

HTH
JonH