Tropical fruits such as pineapple and passionfruit make excellent indoor plants. Pineapples are especially easy to cultivate. The growth comes from the top leafy part of the fruit. Allow the top to air-dry for a day or two, then place it in a glass of water until roots form. Once the foliage begins to grow and roots have formed, plant the top in a rich, fast-draining potting soil.
Pineapples are bromeliads and appreciate being misted frequently.
Its flowers are extraordinary. If you grow passionfruit indoors, try training it over a hoop to create a wreath. The plant's tendrils will wind around any surface. Save the seeds of a passionfruit to start your own vine.