10 vegetables and herbs you can buy once and regrow forever

#1. Garlic

When garlic starts to sprout, the little green shoots are too bitter to cook with. Rather than throwing away sprouted cloves, you can put them in a glass with a little water and grow garlic sprouts. The sprouts have a much milder flavor than garlic cloves and are great in salads, pasta and as a garnish. http://simpledailyrecipes.com/8594/how-to-grow-your-own-garlic-chives/

#2. Carrot Greens

The ends of carrots you usually chop off and throw away will grow carrot greens if you put them in a dish with a little water. Set the dish in a well-lit windowsill and you'll have carrot tops to use as a garnish or in salads. http://projectfidgetyfingers.blogspot.com/2010/04/cleverly-turn-your-carrot-scraps-into.html

#3. Basil

Put a few basil clippings with 4-inch stems in a glass of water and place it in a spot with direct sunlight. When the roots are about 2 inches long, you can plant them in pots to grow a full basil plant. http://cepsinthecity.blogspot.com/2011/06/basil-plants-from-cuttings.html

#4. Scallions

In as little as 5 days you can completely regrow a full scallion (or green onion) from the scraps. Leave about an inch attached to the roots and place them in a small glass with a little water. In a few days, you'll have all new scallions. http://www.thekitchn.com/re-growing-green-onions-grow-your-scallions-back-on-your-windowsill-165274

#5. Romaine Lettuce

If you have a stem from a head of romaine lettuce that's still intact, place the stump in a bowl with about ½ inch of water and put it on a windowsill. You'll start to see new leaves in about 2 weeks, and they'll be full grown in 3 to 4. http://removeandreplace.com/2013/05/07/how-to-easily-re-grow-romaine-lettuce-from-a-stump-indoors/

#6. Bok Choy

Just like romaine lettuce, bok choy can be regrown by placing the root end in water in a well-lit area. In a week or two, you can transplant it to a pot with soil and grow a full new head. http://www.17apart.com/2012/02/how-to-regrowing-bok-choy.html

#7. Onions

Plant the discarded root end from an onion in a pot or directly in the soil outside to regrow. You can harvest it early and get fresh green onions or wait until the bulb is fully developed. http://www.instructables.com/id/Grow-Onions-from-Discarded-Onion-Bottoms/?ALLSTEPS

#8. Ginger

Like onions, ginger root can be planted in soil to regrow, but the process is a lot more lengthy. It can take a few months for it to sprout, and you should be able to harvest a fully grown bulb in 8 to 10 months. http://www.17apart.com/2013/02/how-to-plant-and-grow-ginger-root.html

#9. Mushrooms

Plant mushroom stalks in soil with some compost or used coffee grounds and keep them in a moist environment, preferably where it will be cool at night. They can be tricky to grow, and within a few days the stems will either start to sprout new heads or rot. http://earth911.com/home-garden/grow-food-from-scraps/11/

#10. Cilantro

Like basil, cilantro can grow roots if the stems are placed in a glass of water. Once the roots are long enough, just plant them in a pot. In a few weeks new sprigs will be starting, and in a few months you'll have a full plant.