Rubber Plant (Ficus elastica)

The Rubber Plant is the toughest member of the Ficus family, outperforming #2 on this list in low-light tolerance. Its thick, glossy leaves—available in deep green, burgundy, and variegated forms—store water efficiently, allowing it to bounce back from missed waterings that would kill its dramatic cousin, the fiddle-leaf fig. Thriving in conditions where 70% of other houseplants fail, it can grow into an indoor tree reaching 8–10 feet, demanding only occasional leaf wiping to keep pores open for photosynthesis. With a 99% survival rate in average homes, it rewards owners with decades of growth.