This rock has only recently been completed using hebel panel offcuts which are basically light weight autoclaved concrete . This rock will be freestanding in a tray not a potted rock planting so i have used a muck to help retain moisture and also aid in the growth of the moss being used . The moss will serve 2 purposes by which it will keep the rock cooler and also represent the waterfall which has been carved into the rock as a minor feature . I have used a thick layer of muck both inside the hollowed section for the plants and also along the crevices carved into the rock itself . 
I have pre-wired the plants to prevent to much movement once they are positioned into each pocket .With all the Junipers in the desired position
i then set about applying various types of moss and lychen . 
This over time releases spores and the older moss can be removed and a closer new mat of moss will begin to grow and adhere to the surface for a more realistic look .
With the mosses finished i then give the Junipers a slight trim and manipulate the trunk lines to a more pleasing position .
With all the work done it gets a good wash
and under the pergola it goes to allow the tree’s to settle and the moss to flourish 
. This will eventually be placed in a shaded area 
behind the house out of the wind and radiant heat
which is a major problem here over the Summer months
. Cheers Alpineart
