Grow a little taste of the tropics with your very own pineapple plant. The stark architectural shape of the plant makes it an unusual conversation starter, whether the pineapple is grown as a prickly houseplant or outdoors in USDA hardiness zones 9 through 11. You can start growing your own pineapple plant from the top of an ordinary pineapple fruit.
Buy a pineapple from the produce aisle of most grocery stores.
Use a sharp knife and cut off the top 1/2-inch of the pineapple fruit with the prickly top still attached. Use the knife to trim off the excess fruit so you end up with the prickly top and some fruity stem.
Pluck off the bottom couple rows of leaves from the pineapple top. You'll notice small bumps on the stalk. This is where future roots will emerge. Rinse off the pineapple top and set it on some paper towels to dry for 72 hours. This helps prevent the rotting of the stalk when you plant it.
Prepare a pot while you're waiting for the pineapple top to dry. Pour an inch of gravel into the bottom of a gallon-sized plastic pot. Add an equal mix of standard potting soil and sand, the latter which boosts the substrate material's draining.
Plant the pineapple top. Sink its bare stem into the potting mix so that its bottom leaves are resting on the soil. Water thoroughly twice a day or as needed to keep the soil perpetually moist. The pineapple top will grow roots within 60 days, after which you'll notice new growth emerging from the top of the pineapple.