Hi have you heard of 'Dartfrog'? He is on the web based in Warwickshire I think, anyway he sells various mosses which are live one is a particularly large sheet if you need to cover larger arears and is to be found in Equipment/Landscape and Decor rather than with the Mosses in Plants hope that helps i havent found anywhere else in the uk who sells it in any quantity where I can be sure of its safety tho I am still hunting!