House & Garden Roots Excelurator is the standard by which all other rooting products are judged, it is simply the best and most powerful root stimulator available on the market today. This powerful root stimulator ensures the explosive growth of the roots. Its powerful microbe rich formula with minerals, natural acids and vitamins will help rid the plant of brown sick roots and destroy root mold instantly. Roots Excelurator Gold is formulated for use in drain to waste Soil, or Coco gardens.