I saw this in a book recently and couldn’t believe my eyes when the author listed an extensive list of fruits and vegetables that actually could be used to re-grow food! We have all done the potato experiment in science class as kids but I honestly didn’t realize that the possibilities are numerous. Did you know that there is produce available in your super market that if prepared correctly will actually grow into a tree that you can plant in your backyard? Or how about a vegetable that can reproduce multiple bearings of veggies just by placing it within the correct environment? It’s true and they’re the perfect projects that you can set up for your kids to teach them a thing or two about cultivation, agriculture and preserving our natural resources. Although there are many, here were my favorites that I couldn’t wait to try out on my own!
Avocados 
You’ll want to keep the pit of an eaten avocado and wash it thoroughly. Prick toothpicks through the heart and immerse a little under one half of the seed in warm water. Be careful not to place the cup in a brightly lit window and wait for the fruit to root three inches. Once the plant leaves begin to grow, you can repot in soil and watch your new avocado tree grow!
Onions
photo credit: vegetablegardener.com
You can’t get any easier than this when trying to replicate a one unit of food into several. In fact, you don’t even need water or soil in the beginning because the onion will sprout its own green shoot once it begins to age. You can simply drop the entire head with the greens protruding upward though the soil and be amazed how fast your old onion blooms into an impressive plant!
photo credit: telegraph.co.uk
Apples
Although it’s true that most varieties of apples need pollination, there are a few exceptions. Simply core the seeds from types such as Golden Delicious, Granny Smith and Braeburn and place in a fertilized pot near a well-lit window. Water every other day and watch the sprout begin to rise. When the stem is strong enough to withstand the outdoor elements, you can plant it in your backyard. It may not produce a ton of fruit as a natural pollinating species, but you will be amazed at your new apple tree, which can be grown just about anywhere!