Cast Iron Plant vs Spider Plant

Side-by-side comparison.

Cast Iron PlantSpider 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 weeksWhen top 2 in dry, ~weekly
Humidity40-50% (average household)40-60%
Mature size2-3 ft tall indoors1-2 ft tall, leaves up to 18 in
Pet-safe?Yes (non-toxic to cats and dogs)Yes