I found out recently that pine needles are used as "mulch" for beds. Aren't pine needlesacidic what can grow in those beds, and how much do you pay for it. This is funny cuz here on long island pine needles are a PITA.
Pinestraw is used alot in the south. Anthing can grow in the beds. Most larger beds are used with pinestraw here. Cost is around $3 per bale and we charge $6 per bale to put it out. It will last about 4-5 months before it needs to be refreshed.
We use alot of pinestraw in beds here. I offer the look of mulch, but sometimes pine makes more sense. Azaleas are big here and they love acid soil, as well as holly's and tons of other plants. It's also easier to maintain strww beds if there are pine trees above them.