Cast Iron Plant / Antique English Cast Iron Urn | Detroit Garden Works / Jun 24, 2021 · the cast iron plant (aspidistra elatior), also known as iron plant and ballroom plant, is an extremely hardy houseplant and a perennial favorite in some regions.growing cast iron plants is especially favored by those who don’t have a lot of time for plant care, as this species can survive even the most extreme conditions where other plants would shrivel and …