With their plump, juicy leaves, sedum (Stonecrop), is a gardener's favorite. Sedum is a hardy succulent that will tolerate drought conditions and will do well in poor soil, as long as the soil has good drainage. Although there are many varieties of sedum, they are all easygoing plants that won't mind being divided if you want to propagate new plants. In fact, they will benefit from being divided every three to four years.
Prepare a spot for the divided sedum ahead of time. Make sure the sedum will get at least six daily hours of sunlight, and avoid planting sedum where rain tends to puddle for more than half a day. Remove any weeds, and use a hoe or garden fork to cultivate the soil to a depth of 10 to 12 inches. Mix 3 to 4 inches of compost into the soil.
Dig the sedum, lifting it carefully from the soil with a shovel. Divide the sedum into smaller sections with your fingers. Make sure each section has several roots. If any of the sedum is old and no longer productive, discard it. Replant part of the sedum, and move the divided sections to the prepared planting spot.
Dig a hole for each divided sedum and set the soil aside. The hole should be as tall as the sedum's root system and twice as wide. Plant the sedum, and use the reserved soil to finish filling the hole. Tamp the soil down lightly around the sedum.
Water the sedum and keep the soil damp until you see new growth. New growth indicates that the sedum has successfully rooted, and from that time will need watering only during the summer when weekly rainfall is less than an inch.
Spread an inch of organic mulch such as pine needles or shredded bark around the sedum plants. Mulch will retain moisture, and will help keep weeds under control.