Rootwise Bio-Phos (Biological Bloom Support) is a full-spectrum soil inoculant formulated with an emphasis on microbes which mobilize phosphorus in all soils!
Initial Inoculation: Mix 2 Tsp into 5 Gal of water and apply to root-zone of each container. Follow up doses: Mix 1 Tsp into 5 Gal of water and apply to root-zone. Repeat every 2 weeks.