Here are the video links I used to get the start of how.
That Sculptamold is great stuff, I am going to keep a bag handy at all times.
I just finished some rock outcroppings, i started these off with Woodland Scenics' Rock Molds and stuck these to some foam board and added the sculptamold.
I have a friend at work that got me 5 lotus plant pods and they are being used rather than the fur trees to make something similar.