Can you regrow supermarket lettuce? This lettuce was harvested and packaged weeks ago, then sat in the supermarket, and finally in my refrigerator for another couple of days, so can it still put out roots and grow some more? Follow along as I regrow these heads of Romaine lettuce, the results are…..delicious! You can do this for any lettuce, of course organic is best since it hasn’t been treated with anything….Bon Appetite!
If you want better results (quicker and bigger) then use hydroponic solution in the water. The lettuce will regrow with just plain water, but it will grow bigger and faster with a nutrient solution. The one I use is Grow Big from Fox Farms, 3-2-6, formulated for hydroponics. Very easy to mix with water. You can find it on amazon by searching for it, or here is the link: