The next time you’re working with celery, don’t throw out the little bit at the end. If you save the end piece, you can regrow the celery and have another whole stalk for free. I’ve been doing this personally only for a few months but I have very impressed with the results, I’m sure you will be too.
Cut off the end of your celery stalk and place the bottom piece in a container. I usually use a bowl or a little Tupper with a wet napkin or paper towel. Place the bowl in a sunny spot, like a window sill and leave it there. Make sure the napkin or paper towel stays moist. The outer pieces of the celery will brown and rot but the middle pieces will shoot up.
When you have about an inch or so of growth, stick the celery piece (which should now have a little bit of roots) into some good potting soil and watch it grow! When you need some celery, cut it off of this plant but leave the plant in the ground, it will continue regrowing as long as you take care of it.
I love this idea because I like to dehydrate celery; it works so well and is a great flavor to add to many recipes. So having free celery instead of paying over $3 each time is awesome.
I have also used green onions the same way as well as cooking onions, leeks and garlic. Experiment with it! Have fun!