The common name for sedums is Stonecrop. There is a Stonecrop Nursery in eastern New York which was the first garden created by Frank Cabot. Frank created the Garden Conservancy, an organization which strives to preserve some of our exceptional gardens for posterity. Each year it also runs its Open Days Program which opens gardens to the public throughout the country. Frank Cabot went on to create Les Quatre Vents, an outstanding garden at his family home in Quebec.
There are two sedums which most gardeners grow; Sedum acre, a tiny low-growing
groundcover plant with bright yellow flowers. This is being used effectively in the Peace Garden in the plaza between the library and city hall.
The other is Autumn Joy which is in bloom now and will continue to provide color for
months to come. Some references say it requires full sun. Not so! I have it in three locations in my garden. I have several plants growing out of a south-facing wall. But there are tall oaks and maples to the south so that the only time it gets direct sun is in spring before the oaks leaf out. The rest of the year it is dappled light. Another plant is in the east-facing bed on top of my long stone wall where it gets only morning sun. The third plant is in my shrub-perennial border where it gets a bit of sun mid-day. Mine is the ordinary run-of-the-mill Autumn Joy, but there are several cultivars offered in nurseries. Among these are: Crimson, Iceberg, which has white flowers, Autumn Fire and Chocolate Drop, growing only eight inches tall with brown leaves and pink flowers.
There are two native sedums: Roseroot, Sedum rosa and Wild Stonecrop, Sedum ternatum. A third Wild Live-forever, Sedum teliphiodes, grows on cliffs and rocks in Pennsylvania and southward.