While you can’t regrow full root vegetables from scraps, their tops produce nutritious greens. Place the top inch of a carrot, beet, or radish in a shallow dish with water, keeping the top above the waterline.
Fresh greens will sprout within a week and can be harvested regularly for salads, pesto, or garnishes.
7. Basil, Mint, and Other Herbs From Cuttings
Herbs like basil, mint, and rosemary propagate easily from cuttings. Cut a healthy stem, remove the lower leaves, and place it in a jar of water.
Change the water every few days and keep the jar in a sunny spot. Roots usually develop within a week. Once established, the cutting can be transferred to soil for long-term growth.
8. Regrowing Garlic, Onions, and Shallots for Greens
Place a garlic clove or the base of an onion or shallot in water with only the bottom submerged. Set it in a sunny location.
Green shoots will emerge within days and can be snipped as needed. These greens make an excellent substitute for chives or scallions.
9. Avocado Pits: The Classic Jar Method
Suspend a cleaned avocado pit over a jar of water using toothpicks so the bottom half stays submerged. Place it in a warm, sunny spot.
Roots and a stem usually appear within 2–8 weeks. While growing a fruit-producing avocado tree takes years, the process is a rewarding and educational experiment.
10. Pineapple Tops and Other Tropical Plants
Twist off the leafy top of a pineapple and remove the lower leaves to expose the base. Let it dry for a few days, then place it in water with only the base touching.
Roots will form over several weeks. Once established, transfer it to soil. Tropical plants require patience, but the process is fascinating and decorative.
11. Preventing Rot, Mold, and Pests
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