Neverland CtenantheGrowth Habit: Upright, this variety can reach about 2 4 tall and wide indoors. Light Requirements: Prefer bright indirect light, the darker the leaves, the more it can handle lower light conditions. Toxicity: Nontoxic to both cats and dogs according to ASPCA. General Care: Plants prefer moist soil and drying out some between watering. Water plants once a week or once every other week.