I have gone into heavily wooded pine tree areas and raked pine needles, bagged them and brought them home as mulch. In the south, they use a heavier pine needle the same way we use pine bark mulch in Massachusetts. We have so many pine trees and needles that we rake and throw away that the garden centers probably figured that we would not buy pine needles. I had a bad experience with pine bark mulch. It came with termites and scale. Must have been the bark of an infested tree. I have never gotten rid of either since. Prior to the shipment we had never had a problem. You can tell if you have termites by leaving a piece of wood buried in your ground for a while. I recommend that if you are buying pine bark mulch only buy the treated kind. I now use only pine needles that are free. Chris, Braintree Z6 I do have slightly acidly soil so I am adding lime.