Fancy foliage gorgeously variegated with swaths of color that range from pink to purple and small sizes make these great plants for tables and bookcases. Calathea thrive in low light. We think they're especially swoon-worthy in romantic spaces like bedrooms, libraries and quiet nooks. What is the rarest Calathea? White Fusion is the rarest Calathea variety. It is the only Calathea that has a genuine variegated pattern.