Blended Bark is a blend of medium grade Pine Bark with average particle size ranging (in length) from 12mm – 20mm and our Longalife® Forest Brown Mulch. This enables customers to have that natural Pine Bark look with the longer lasting colour provided by the Forest Brow Mulch. On average colour retention extends two plus years longer than standard Pine Bark products. Blended Bark is suitable for all mulching and landscaping purposes. This product does contain dye.