The Zamioculcas zamiifolia, also known as the ZZ plant or Zanzibar Gem, are low-maintenance, beautiful plants to keep indoors, and the Raven ZZ shares much of the same characteristics - however, it sprouts lime green leaves that turn a deep purple-black as they mature.
Water this plant every one to two weeks, depending on the amount of sunlight it receives. Normally acclimated to dryer climates, this is easy to maintain and drought resistant. ZZ plants are famous for surviving in low-light conditions. They are one of the few houseplants you can keep in a windowless bathroom or stairway; however, they prefer some indirect sunlight.
*Carefully selected grower's choice*