According to Dayton Nurseries, sedum is one of the most popular perennial plants to grow in the garden because it is easy to grow and hardy to most areas of the country. Sedum is frequently grown in alpine gardens as well as perennial gardens. Some sedums grow upright, while others grow in mat-like formations. Because of the wide variety of sedums that grow, it can be challenging to identify these plants.
Examine the plant and note the characteristics of the leaves. All sedums have thick, succulent-like, waxy leaves.
Check for the plant's bloom time. Though flower varieties vary, all sedums bloom in late summer and early fall.
Take a photograph of your plant using a digital camera with a macro feature. Compare your photograph with examples posted online at sedum websites such as the Sedum Society at www.cactus-mall.com.
Take a cutting of the plant for further identification by snipping off a segment of the plant with garden shears. One of the services that the Sedum Society offers is to identify your plant if you send it a cutting.
Borrow a book specific to the subject of sedums from your local library or purchase one from a book store. According to Ray Stephenson, author of "Sedum: Cultivated Stonecrop," most general garden books neglect the subject of sedums. If your library does not have a book on sedums, you can borrow one through inter-library loan.