Pine straw is my favorite mulch for both moisture retention and weed control. It breaks down much slower than wood mulch so it does not need replenishing as often. Because of the slow break down acid is not a problem. Great stuff and it looks nice as well.
Elizabeth - or Your Majesty
Living and growing in Lafayette, La.
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant. ~Author Unknown