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.
Knowing how it grows. Cilantro easily grows into a leafy rosette of aromatic fresh flavor that just canât be replaced by the dried leaves in the grocery spice rack. However, donât be surprised when the longer days of spring cause the plant to quickly stretch up to about 2 feet tall with white flowers on top.