Pine needles slowly raise soil acidity as they break down. They make a natural, organic, lightweight mulch for acid-loving shrubs, including azaleas, blueberries, gardenias, mountain laurels and rhododendrons. Pine needles are also suitable for mulching vegetables.
About this Author
A freelance writer, Judy Wolfe has owned Prose for the Pros, a freelance writing business, since 2006. She's been an inveterate traveler since 1961 and draws on her travel experiences to provide articles for such websites as Chincoteague Island Vacations and Berlin Dude. Wolfe holds a Bachelor of Arts in literature from California State University at Pomona.