Beginner Gardener Seed Pack (6 Varieties) Assorted Succulent Cuttings for Sale Using the right soil mix can make a world of difference for your houseplants. Well draining mixes, like those incorporating perlite or orchid bark, allow excess water to escape, protecting roots from rot. Silky Wildrye Grass Seeds (Elymus Villosus) 1 lb 25 Most Expensive Succulents in the World Rare and Expensive Succulent Plants Plant and Planting