Oxalis triangularis is sure to be the star of the show wherever placed indoors. Oxalis are a reasonably low care plant whose leaves close up at night and re-open in the morning. Place in filtered bright to medium light. Keep these beauties away from harsh direct sunlight. Allow the soil to dry between watering, ensure the topsoil is dry before re-watering. Make sure you do not overwater as this will cause the bulb to rot.