Supply your evergreens and other acid-loving plants with a balanced diet all season long with Ross root feeder refills. Keep your plants thriving and healthy without the mixing, measuring or mess, with Ross evergreen root feeder refills, you can rest easy knowing they're well-fed. Whether it's for your evergreens, azaleas, magnolias or other acid-loving plants, this easy-to-use fertilizer ensures they're receiving the perfect amount of nutrients directly to their roots while you water.