Many people buy fresh pineapples, peel off the skin and cut the spiky stem to reach the exotic pineapple meat inside. Little do they realize that they can actually plant the spiky stem to grow a handsome houseplant. The University of Hawaii says pineapples can be grown indoors under controlled conditions to produce a healthy and attractive plant, even though they might not be as large as plantation-grown pineapples. Those conditions are not that hard to achieve.
Prepare the stem or crown of the pineapple. If you haven't already cut it from the top of the fresh pineapple, you can grasp it firmly and twist it off. This will leave less flesh on the crown that might mold later. Remove the bottom couple of leaves to expose more root nodules.
Set the prepared crown in a dry and cool place to dry for about a week. You should keep it upside down so the damp end can dry out.
Plant the end of the crown into a 12-inch plant pot filled with potting soil. Press the soil up against it so that it sits solidly in the pot, with the bottom leaves resting on the soil. You can expect the leaves to grow beyond the edges of the pot, but a 12-inch pot will have plenty of room for the roots.
Water your pineapple plant immediately after planting by sprinkling the soil with water. It should only need about 8 oz. of water a week. Never let it sit in a tray of water.
Set the pineapple plant in a sunny spot where it can get at least six hours of sunlight per day. Pineapples will fruit after 18 to 24 months, so you can expect a beautiful blossom during the second year and hopefully a new pineapple. The pineapple does not need much maintenance other than a light dusting of the leaves periodically.