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A-1 Greenroof/Hydroponic Mix

A-1 Greenroof/Hydroponic Mix is a blend of Pumice, Coir, Peat Moss, Washed Sand and A-1 Lifelike 3/8” Compost. This soil is relatively lightweight due to its high organic content and extremely low clay content. Although it has a superior percolation rate, its water and nutrient holding ability greatly reduces leaching of valuable plant nutrients and minerals. (Made on order only.)


A-1 Greenroof/Hydroponic Mix



  • Rooftop or parking structure containers and planters
  • Herbs
  • Greenhouse growing medium


A-1 Greenroof/Hydroponic Mix may be applied directly as a backfill for planters. It may also be applied to existing native soil by rotor-tilling a 2” layer to 2” to 4” of existing soil. It is important to rotor-till with existing soil to create a transition zone. A final layer of 4” to 6” may then be applied to the rotor-tilled surface. Periodically apply mineral nitrogen at 5 pounds per 1,000 square feet.


  • PH Range6.0-7.5
  • ECe (Salinity)< 3.0
  • SAR < 4.0
  • Nitrate Nitrogen 1.0-15
  • Boron < 1.0
  • Bulk density pounds/cubic feet 43.4
  • Saturated bulk density pounds/cubic foot 68.3

Specification data subject to change. Additional data available upon request. 

Limitation of Warranties: Seller makes no warranty of any kind, express or implied, regarding the materials; and all warranties, including any implied warranty of merchantability and any implied warranty of fitness for a particular purpose, are hereby excluded.