If you love growing things and fun kitchen experiments, here's an experiment for you – regrowing romaine lettuce from the stem.
On the left is a full grown leaf from a store bought romaine lettuce, on the right are 12 leaves regrown from a romaine stem after about 4 weeks
Unlike regrowing green onions which will leave you with a steady supply of green onions, regrowing romaine won't fulfill your lettuce needs. It is, however, really cool!
Next time you have a full head of romaine lettuce give it a try.Step By Step Instructions for Regrowing Lettuce from a Stem
- Eat your purchased lettuce, cutting the leaves at about 1 inch from the bottom.
- Place remaining stem in a shallow dish of water (about 1/2 inch).
- Place on a window sill or under grow lights.
- Change water in bowl every 1 to 2 days.
- Watch your lettuce grow. It is truly remarkable how quickly the new shoots start. You'll also notice that roots will start to grow on the bottom.
- After 10-12 days, your lettuce is going to be as big as it will likely ever get. No, it's not going to be a full head of lettuce, it'll be just enough to top a sandwich or make a small salad. But how cool is that!
- 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 below.