Outdoors, cast-iron plant is a sturdy shade-loving ground perennial in USDA Hardiness zones 7 to 11. (Find your zone here.) I'm a garden writer with more than 15 years of experience growing ...

experienced gardener and owner of Bigger Garden. “If you’ve ever come home from a short vacation to find your houseplants wilted and looking sad, cast iron plants may be the right variety for you.” We ...