For that reason you need to put your National Drug Code (NDC) into a Universal Product Code (UPC) barcode in the United States. A UPC-A barcode symbol contains a GS1 GTIN-12 data structure. Here is what you need to do to convert your NDC into a GS1 GTIN-12:
How to Harvest Cilantro. 1  Cilantro leaves can be cut at any time during their growth period, but waiting until the plant is about 6 inches tall will give you optimum leaves.  Cut the outer leaves first, allowing the smaller leaves that are closer to the stalk to continue to grow and mature.
At least 6 hours of direct sun per day. Turn plant for even growth because it will tend to grow toward the light source. If growing cilantro under indoor plant lights, keep the light 6 in (15 cm) above the plant and leave it on for 14 hours a day. This is the equivalent of 6 hours of sun.