Jack's 15-0-0 Calcium Boost 25 lb. Fertilizer - Part B
Should be used in combination with the 5-12-26 Hydroponic in a two-part system. Calcium uptake & strong leaf growth. Calcium (Ca)…18.0%. Size: 25 Lb. nd part in a two-part system- Combine with the 15-12-56 hydroponic.