Phalaenopsis orchids and dendrobium orchids are two of the most popular varieties of orchid. Although they both belong to the same family, their characteristics are quite different. Phalaenopsis orchids have large, showy blooms with overlapping petals that come in a range of colors from white to deep purple. They tend to bloom more frequently than other types of orchid and can often re-bloom when given proper care. Dendrobiums feature smaller flowers which typically grow in clusters along thin stems, though some varieties may produce single blossoms. The color palette for dendrobiums ranges from light pink to bright yellow but is usually limited compared to phalaenopsis. Both types require similar amounts of sunlight and water, however phalaeonpsis prefer higher humidity levels than their cousin does. When it comes time for repotting, there's also a difference: while phalaenopsis should be transplanted every 2-3 years into a well draining medium such as bark chips mixed with sphagnum moss; dendrobiums should be placed in firmer soil like clay pellets which help provide extra support for its thinner stems