Spreading Java moss

I know that to get java moss to stick to something you need to tie it down.
But What do I do if I want it to spread?
I want it to cover a large piece of wood in my aquarium that would cost me a small fortune if I had to buy enough moss to cover it. Will it spread naturally like a carpet if I keep trimming it or do I need to grow it on a mesh and Manually tie down every piece to cover the log?
A daunting task to say the least.

 

I have some christmas moss covering a lot of my wood in my tank. Best advise is passions. Moss is a slow grower and will cover the wood eventually. keep on trimming and wrap the cuttings on the wood. should do the trick

 

I think you meant patience, not passions, but yes. I agree. Initially moss can be quite slow growing, but once it settles, it can grow at quite a speed. The most important thing in getting moss to attach, is to keep trimming. Never let it bush out too much. Once it's too bushy, very little light travels to the area where the moss is attached to the wood, and it rots. This will make the moss detach from the wood.

 

Thanks @Sean J. Thats what I meant.

 

Great thanks alot. I did not see my way clear of removing the decor every time to tie down a small piece of moss.