How to Revive a Peace Lily So It's Lush and Thriving Again, According to Experts Save your struggling peace lily with these expert-approved tips. Close Credit: Helin Loik-Tomson / Getty Images The peace lily (Spathiphyllum) is a popular houseplant native to tropical regions. It has lovely foliage and interesting flowers—a specialized white leaf acts as a backdrop for a spadix of tiny blooms. Peace lilies look terrific in containers placed thoughtfully around your home. Naturally, we want to keep our peace lilies looking beautiful, but houseplants can be challenging at times, and there's always a learning curve with a new species. If your peace lily is looking a little under the weather, read our gardening experts' advice on how to revive it.