25 Perennials That Add a Burst of Color to Your Fall Garden How to Grow and Care for Curcuma You'd never put table salt on plants, which would kill them. Rock salt from icy roads damages plants, too, and so does the salty spray that comes off the ocean in coastal Velvet Calathea Rufibarba Feather Prayer Plant Live Indoor Outdoor Tropical Houseplant Home Office Decor Easy Care in 6" and 8" Pot Etsy Flora van Nederland: Reuzenberenklauw Heracleum mantegazzianum