Mulch for perennial beds
Hello all. I heard on a gardening radio show and read on a separate gardening blog that, while fine for around shrubs or trees, you should not use bark mulch or wood chips on perennial beds because it takes too long to break down. They recommended using a mulch that would decompose in a year, like cocoa hulls. Well, cocoa hulls are hard to come by around here, and I have a huge pile of ground up tree limbs (non-diseased) that I would like to use in my garden beds.
Is it really bad to use wood chips as mulch on perennial beds? If so, do you have recommendations for easily broken down, readily available mulches to use as an alternative? Thanks for your advice.