Cast Iron Plant vs Polka Dot Plant

Side-by-side comparison.

Cast Iron PlantPolka Dot Plant
DifficultyBeginnerBeginner
LightLow to bright indirect light (tolerates low light)Bright indirect light
WaterWater when top inch of soil is dry, typically every 1-2 weeksKeep soil consistently moist; water when top inch is dry
Humidity40-50% (average household)50% or higher
Mature size2-3 ft tall indoors12-24 inches tall and wide
Pet-safe?Yes (non-toxic to cats and dogs)Toxic to cats & dogs