In article , david@abacus-
nurseries.co.uk says...

On 10/09/2014 17:33, N_Cook wrote:
On 10/09/2014 08:02, john t west wrote:
We are having to install a new security fencing around our allotment.

Its very bright shiny galvanized finish is a bit overpowering. Is there
any way to encourage moss etc to grow on it to get it to blend in more?

The recommended route to encourage lichen for new-build , in
conservation areas , is to slap on, as near as natural yoghurt that you
can find, ie no flavourings/preservatives etc


Strange, in the old days it was liquid cow dung, but then to me there is
little difference.

I use a mixture of moss ground up in the food processor, added to a
bucket of sheep dung, out of date plain yoghurt, and water. Steep
overnight, mix well then slap it on with a wet rag. Speedily promotes
the growth of lichens and mosses (depending on aspect) and an aged look
on raw stone (walls) or clay pots.

Janet.