Green Onions - The next time you buy or pull green onions from your garden – don’t throw away the bottom bulb portion. Cut off what you need for your recipe, dinner, etc then toss the bulbs into a glass with a bit of water. They’ll begin to grow and give you new green onions to use!
grow a pineapple plant and even a baby pineapple from the crown (top leaves) of your store bought pineapple. Now this will take about two years to get a fresh pineapple to eat, but you can still enjoy a tropical pineapple house plant for free from your pineapple remains.