Orchids used to be very expensive and difficult to obtain since propagation was complicated and time-consuming. New methods called meri cloning have made plants easier to propagate so it is easier to buy these glamorous plants at affordable prices. But they still need to be cared for properly if you want your orchids to thrive and show off their fantastic blooms.
Epiphytic orchids naturally grow high above the ground in the crotches of tree branches where composting organics collect. Their root systems function as much to attach them to the branches as for growth and feeding. This information is useful because it tells you something about how to care for the roots of your epiphytic orchid. You will want to grow it in a porous container like clay or wood with big drainage holes so water drains through quickly and there is plenty of air circulation around the roots - just like in nature. You will also want to use a very loose, jumbled rooting medium that will drain faster than soil. You can buy orchid mix made just for this purpose.
More orchids are lost to over-watering than for any other reason. That's why watering needs to be done regularly with impeccable drainage.
Epiphytic orchids also need good light. They will burn in full sun since they have evolved under the dappled shadows of the upper foliage of overhead branches. So give them similar light exposure if you want the best chance for success.
Some popular epiphytic orchids that grow well in pots are Phalaenopsis, Oncidium, Cattleya, Dendrobium, Vanda, Odontoglossum, Brassia, Paphiopedilum, Miltonia and Epidendrum. There are many more and even more crosses. Some are more demanding than others. All prefer high humidity.
These are just some of the main tips on how to grow epiphytic orchids letting nature be your guide. There is a lot more to growing orchids such as allowing them rest periods, pruning, feeding and re-potting. Much information depends on the type of orchid you are growing. For more information, check some of the additional References listed below.