p.k. wrote:
Phil L wrote:

the gaps between fill with dust and seeds and the rest is
history.



Unless propely mortar pointed!

pk



Thanks all - I'll take all that on board and amend my plans accordingly.
It has to be said that I've changed the plans several times already as
new information comes to light - perhaps I'd better just get on with it
before winter sets in! Thanks for all your help so far - I'll no doubt
be back.

Iain