Mammillaria karwinskiana ssp. collinsii Cactofili Cactaceae Monstera Mask Style 2 Stencils PM Artist Studio The monstera deliciosa became an icon, and honestly, it earned every bit of that status. But there's so much more to this plant than its gorgeous appearance. It's a genuinely fascinating Brown edges on Monstera leaves are common. But they're rarely random. Often it's your plant quietly responding to something in its environment. Here are four things worth checking: