19. Lemongrass
Lemongrass is a flavorful herb that’s easy to regrow from the stalk. Save the bottom few inches and place it in a glass with water. Leave it near a sunny window and change the water every few days. In about a week, roots will appear at the base. Once they reach an inch long, transfer the stalk to a pot with moist soil. It grows well indoors and adds amazing flavor to soups and teas.