Calcium Nitrate, Greenhouse Grade Option:50 lbs. Calcium Nitrate, Greenhouse Grade With a full year's supply

With a full year's supply of growing essentials

CropKing offers the same black poly pipe as used by commercial growers

Are you and your students ready to brave the hydropocalypse

propagation cubes

Extended Crop LongevityStrong end-of-cycle vigor extends production

Calcium Nitrate, Greenhouse Grade Option:50 lbs. Calcium Nitrate, Greenhouse Grade With a full year's supplyFor best results, use only "greenhouse grade" calcium nitrate fertilizer in your hydroponic growing system. You will have less residue and sediment from mixing and less plugging of your feed lines and drippers. 15. 5 0 0 Greenhouse grade calcium nitrate for plants is a refined, prilled (uncoated) highly soluble fertilizer. 5 & 50 lb bags ship free via UPS to the contiguous United States. For pallet or individual qualities, please call 330 302 4203.