Mulching with leaves is next to impossible here because the wind blows quite a bit and blows everything away. I actually tried last year since I had one of those yard vacuums that you hook to a lawn mower; I was putting it around all my trees since I had cut all the brush (more like a jungle) from around them. Well it looked good for a short while until the wind would blow it away. I would redo it and the wind would blow it away. So I said the heck with that. It even got so windy at times it would blow the pine bark I had in one bed out.
