text:  It's the most water-efficient crop on the planet. It uses less water for each pound of grain produced. And that's how it was able to do this. It survived, and it actually produced grain without being watered for a month or two. Can I buy this millet on the store shelves? It's a global crop. A lot of it's grown in India, China. In the U.S., it's grown in northwest Colorado, western Nebraska, South Dakota, and so forth.