Unkillable set likes
Water
They’ll be happiest if you water them when the top two inches of soil are dry. If you forget, they won’t mind.
Light
They can live in almost all light conditions, even in your shadiest corners. They’ll grow faster in brighter light.
Humidity
Pippa and Rapunzel will appreciate regular misting to keep their leaves moist. Susie and Cassie don’t need it.