The Culture of Jewel Orchids
Jewel orchids, valued for their beautifully veined maroon foliage, are natives of Indonesia and Burma. Known as Ludisia discolor and Haemaria discolor, these orchids' natural habitat is rich humus at the base of trees, with plenty of moisture. They are easy to grow indoors in similar conditions, especially in terrariums.
PottingWhile many orchids are epiphytes, attaching their roots to tree bark and obtaining their nutrients from air and rainwater, jewel orchids are terrestrial orchids; they grow in soil. Pot them in a generous container in well-draining potting soil, high-quality sphagnum peat moss or commercial terrestrial orchid mix, not bark.
LightJewel orchids prefer low to medium light, so don't place them in a window that receives direct sun. If the orchid is getting too much light, its leaves will fade. Because they prefer temperatures of 70 to 80 degrees Fahrenheit during the day and 60 to 65 degrees at night, don't place jewel orchids near a cold window.
WaterKeep the medium moist, but not soggy. Jewel orchids are quick, vinelike growers, and do well in a terrarium because of the moist environment. Humidity is vital, so mist the terrarium or the orchid regularly. Jewel orchids are a good choice for a bathroom because of their low light and high humidity requirements.
BloomJewel orchids bloom once a year, from winter to early spring, so they are often for sale around Easter time. They produce clusters of small, white blooms on four or five flower spikes. Ensure their yearly bloom by feeding every other month with orchid food at one-quarter strength.
(ehow.com)