Rooney Mara Regrets Playing Tiger Lily in Pan The Mary Sue If your succulents keep rotting or looking unhealthy, the problem is usually the soilnot the plant. Succulents need a fast draining soil mix that doesn't hold water for too long. In their natural Pencil Cactus Garden Style San Antonio Valentine Succulent Pack Portulacaria afra 'Elephant Bush' 4 Inch Variegated 15 Reasons Your Spider Plant Is Dying And What You Can Do To Keep It Alive