"1. Eat your purchased lettuce, cutting the leaves at about 1 inch from the bottom.

2. Place remaining stem in a shallow dish of water (about 1/2 inch).

3. Place on a window sill or under grow lights.

4. Change water in bowl every 1 to 2 days.

5. Watch your lettuce grow. It is truly remarkable how quickly the new shoots start. You may also notice that roots will start to grow on the bottom.

6. After 10-12 days, your lettuce is going to be as big as it will likely ever get. It’s not going to be a full head of lettuce, it’ll just be enough to top a sandwich or make a small salad. But how cool is that!

7. If you leave your lettuce beyond this point, it will become spindly and bitter as it attempts to produce seed. It won’t be pleasant to eat at this point. You’ll know it has reached this point when the leaves start turning a blue green color and/or the main stalk shoots up and leaves become less dense. Trust me, eat it when it’s like the photo."