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.
(If you have lots of seed there is another way to grow cilantro and I'll tell you about it below.) Don't go overboard with the amount of seed. Healthy cilantro plants grow fairly big, about 50 cm or 2 feet tall. You want about 5 cm between plants if you grow cilantro for the leaf. They need more space if you grow them for seed, but you can always eat the extre plants and just leave a few to go to seed. Cilantro seeds take about two to three weeks to germinate. If they come up too thickly, just pull up and eat the extras...