A holiday cactus (Schlumbergera x buckleyi) is a low-maintenance plant that can be grown indoors year-round. The blooms on these plants are usually pink, purple, or white.
The Christmas cactus is the most common type of holiday cactus and, as its name suggests, blooms in shades of pink or purple during December. The flowers are arranged in clusters at the top of the stem with petals that point upward for easy viewing. When these plants are not in bloom they can appear brown and dead but this isn't cause for concern because they will soon produce new leaves.
In the wild, it can be found in shades of green, but it is most commonly sold as a red or pink cactus.