Oxalis(Butterfly plant) should be planted in soil that is wet and well-drained but never waterlogged. The ideal soil is slightly acidic. Additionally, add some well-rotted manure or compost to the soil before planting to enhance its quality and drainage. Although oxalis requires a few hours of sunlight each day, if you live in a hot environment, plant it in the afternoon shadow. While oxalis leaves may wilt in the midday heat, they typically recover as nighttime temperatures drop. Remember that plants with darker foliage can withstand more sunshine.