Originally Posted by chadwhick
So, what if there is already old mulch down? do you rake it a little to freshen it up or clean all the old stuff out or just lay new mulch right over it? and how deep does the mulch need to be?
Probably depends upon the situation. I've never removed old mulch, but if the client wanted dark mulch put down where "bleached" or "blonde" bark is, or vice versa, then I'd probably have to - in as much as I'd hate to. You surely would have to figure that into your bid!
If you're trying to cover up different colored mulch, you better plan on spreading it a bit on the thick side... probably at least a few inches of it. You may be able to hide it with a thin layer, but as soon as you try to freshen the new mulch you'll uncover the old.