On 1/12/07 08:42, in article ,
"Charlie Pridham" wrote:

Recently built a wall, on the shady side of which I intend growing plants
that like acid soil conditions, my intention is to remove some soil (and
therefore the worst of my cement droppings) replace with an ericaceous
mix, my natural soil here is slightly acid, my question is how much lime
will the new wall leach into the soil? is there anything that can be used
perhaps to neutralize this? (seem to remember some stuff they used to use
to preserve eggs, changes the chemical composition of concrete, I think
that was called ising glass or water glass) Or will I be ok to leave well
alone?

Isinglass but that's my only available contribution, I'm afraid!

--
Sacha
http://www.hillhousenursery.co.uk
South Devon
(remove weeds from address)
'We do not inherit the earth from our ancestors, we borrow it from our
children.'