|If you were hoping this is what I was talking about, they are available on Amazon|
Pinterest, the corpses of all of these can be reanimated into new plants, that will eventually provide new food!
Chop off the top of a pineapple with a bit of core still attached and stick it in the soil:
Save the pit of an avocado and suspend it with toothpicks in water to grow a new tree:
Cut off the bottom of grocery store celery, stick it in the soil, stalk side up, and grow an easy new celery plant!:
For the sweet potato, cut it in half (longways) press into moist soil and cover them with plastic:
I mentioned my plan to start a zombie garden to my dad, and he told me there is in fact a whole book out there about it! The book he mentioned is called The After-Dinner Gardening Book. When looking for this book on Amazon, I discovered there is another book out there like this as well: Don't Throw It, Grow It!: 68 windowsill plants from kitchen scraps. I definitely will be seeking these books out from the library to try to grow my zombie (plant) army!