GP Soils

GP Soils makes all-natural, organic living soils for home gardeners and farms. Its signature product is an infused potting mix meant to carry plants from seedling to harvest with little or no added nutrients. The line also includes a seed starter and base soil, certified as OMRI or CDFA compliant, and a finely sifted plant-based compost sold in 1 cubic foot bags or by the yard in bulk.

The company grew out of Grogg's Green Barn, once described on its site as the first organic garden center in Oklahoma, and it now produces soil for farms as well as retail customers. Orders for wholesale accounts go through a separate application. The address is 9815 E 520 Rd in Claremore, Oklahoma.