Can somebody explain how this works? They seemingly are just growing on rocks with little or no soil. : r succulents Aeonium Sunburst Succulent Copper Pinwheel Succulents Box 2 inch Clay Pot by Succulents Box My Top 25 All Star Tropical Permaculture Plants The Growing Dutchman Chrysanthemum Flowers: Planting, Growing, and Caring for Chrysanthemums Aquarium Grass Plants Seeds Small Hairy Grass