On 27/08/2012 09:49, Another John wrote:
In article ,
stuart noble wrote:

The B&Q own brand Soil Improver is sharp sand!
I regard vermiculite as the only permanent improver because it's a one
off application that changes the structure forever

OP here Hmm - interesting Stuart, but that will surely change the
appearance of the soil too?


A few white flecks here and there. It fractures into minute platelets
that are barely visible