Hi everyone! First post in this forum... We always used wood mulch in our flowerbeds when we lived in New England, but here in NC everyone uses pine needles. I don't really like the looks of it, but I wonder why it's popular here. Is it cheaper, or lasts longer? Or maybe it is better with the pH of the soil? We need to get to work in the yard, so we'll have to make a decision to replace the current pine needles or just add more on top. Thanks!