Getting the proper balance of water for plants can be tricky: too much water and the roots will start to rot because of poor drainage, and too little water and they'll dry out. The specific amounts of water needed will vary from plant to plant, as some like to be very wet all the time while others only need watering once every few weeks. Want an unusual tropical plant? Growing pineapple plants indoors is easier than you may think and sure to grab attention. The pineapple is a tropical plant with edible multiple fruits consisting of coalesced berries, also called pineapples, and the most economically significant plant in the Bromeliaceae family.