The botanical name for the Rhoeo is Tradescantia/Rhoeo spathacea, and it can also be found under the name of "Oyster plant" or "Moses-in-the-Cradle"
Water: Allow this plant to dry out almost completely between thorough waterings. Allow excess water to drain away. In the winter, water less.
Light: Does best with plenty of bright, indirect sunlight. The more light, the more pronounced the colours on the underside of the leaves.
Soil: Use a light, well draining potting soil.
Humidity: Does fine in standard house humidity, but would appreciate the occasional misting. If you notice browning tips on leaves, this is indicative of too low humidity.
Fertilizer: Fertilize once a month through out growing season using a water soluble houseplant fertilizer. Do not fertilize in winter.