US Patent 8122642 Horticultural growth medium

A horticultural growing medium is made up of composted bark, a carbon-based fibrous material, a hydrophilic polymer, sea solid, and beneficial bacteria/fungicide. The materials are formed into a solid substrate having structural stability, with both micro and macro interconnecting pores. The addition of a controlled release fertilizer provides for a perfect combination of nutrients, water retention, and pest and fungus control.