HydRocks Course Grade

HydRocks® is a calcined clay, heated to 2000°F to make it the strongest expanded lightweight in the business.

HydRocks® is agriculturally sterile and environmentally inert. It is not a chemical. It is a nontoxic, generally neutral pH, absorptive granule made from natural material.

Unlike other soil amendments such as peat and mulch, HydRocks® does not need to be reapplied year after year. HydRocks® is dimensionally stable and will not degrade or compress like other soil conditioning products.

HydRocks® soil enhancement provides an excellent environment for healthy root structure. HydRocks® retains as much as 35% of its weight in absorbed water and water-borne nutrients which are steadily released as the soil dries.

HydRocks® Benefits:

  • Reduces water usage
  • Retains moisture during dry periods
  • Reduces water runoff
  • Improves moisture retention
  • Provides adequate drainage
  • Promotes healthy root structure