In reality, the greatest difference between the two groups is the different light requirement. If you observe the leaves, the orchid will tell you when the light is just right. Dark green leaves mean you need to increase your lighting. Yellow leaves mean you need to decrease your light. If the leaves have a slight pink tinge, that indicates the plant is receiving the maximum amount of light.
Red leaves are a sure sign of too much light.
Both groups do very well in a cool basement grown under lights. Although the Pansy Orchids may be a little more difficult to grow, if you buy well established healthy plants and you can provide the necessary temperature and lighting requirements you can discover the joys of having a Pansy orchid growing in your home or greenhouse. The Orchid Garden is just one of the 28 different gardening topics you can visit here on Suite 101, covering everything from annuals to zucchini. Suite 101 offers you the best of the World Wide Web, with great articles and links to the very best sites for over 200 different topics in 17 categories. I am a novice with Milts.