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.
Once you have prepared the cilantro seeds, you need to plant the seeds. You can either start cilantro indoors or outdoors. If you are starting the seeds indoors, you will be transplanting cilantro to the outdoors later on. Advertisement. Put the seeds in the soil and then cover them with about a 1/4-inch layer of soil.