Broadleaf sedum (Sedum spathulifolium): Broadleaf sedum thrives in the wild on rocks, very thin soils, and coastal bluffs. Drought-tolerant, it would do very well in a rockery. Deer resistant. Perennial. Sun to part shade; moist to dry soil. Perennial, succulent herb of silvery, blue-green and red clusters w/ bright yellow flowers in flat topped clusters atop leafy, flowering stems. Good as ground cover, in rock gardens and in rock walls. Flowers attract butterflies. $20 for a bundle of 5 bare root seedlings.