Sedum and succulents are hidden jewels of the plant kingdom: easily overlooked, but enchanting for those who seek them out.
Get on your hands and knees and take a close look! You'll see what I mean.
My grandmother loved sedums, especially; all of them. They spilled out of planters and into the grass. She tucked them into the tightest crevices of stone walls where they thrived in the barest patches of available soil.