The butterfly orchid, or Phalaenopsis, is a popular house plant but it can also be somewhat demanding. Follow these tips to take the best possible care of it. Full sun in winter Make sure you place your phalaenopsis near the brightest window in your home during the winter months, says Jörg Frehsonke, an orchid grower from Germany. During this time, these plants are able to tolerate direct sunlight. In summer, on the other hand, your phalaenopsis will grow best in the shade. Don’t let the plant hang over the radiator Protect the plant from any cold, frosty draughts it might be exposed to on you…