Old Tom
I have been given a bit of greengrocer's mat to see if it's any use on my railway. I laid an area today and this is the result:
Can anyone tell me if the colour will tone down a bit as the weather gets at it? Any nifty ideas to make it look more realistic?
All constructive comments gratefully received! 
Hi Tom
I had a piece of green grocers mat that i left out side for about 3months,
it very quickly went, a dull manky greeny/black sort of colour and eventually
went mouldy.
(bin time as it started to smell as well)
The chap that gave it to me pointed out (too late) that it is not quite the
same as Astro-Turf and wasn't really designed to sit on a damp surface for
any lenght of time.
Apparently it needs to be able to drain and dry out easily, i later tried another
piece which was raised slightly and laid on a layer of gravel. this also discoloured
quite quickly but did not go mouldy.
Its use wasn't train related, more for 1/18th R/C models and the colouring was
less noticable but if memory serves, it should mellow down and look a lot better
in a few months.
It did seem to be something of a target for Birds and cats though.
I can only say that it was still OK at about 6months as it disapeared over
one week end,
Some months later it was found lining the local Squirrels nest
P.S. I like the look of the trees especially the one in the back ground,
i assume they have survived the cement base OK,
how much bed did you have to give them