With its high perlite content, Pro-Mix HP provides a great growing environment to growers looking for a significant drainage capacity, increased air porosity and lower water retention. The added benefit of fibrous peat moss and coarse perlite makes this formulation ideal for growers who require a superior-quality product adapted to their needs for watering flexibility and crop seasonality. Available in a 2.8cu.ft. loose bag or 3.8cu.ft. compressed bale.