A native plant of sub-Saharan Africa and other desert regions of Africa and the Middle East, the Desert Rose or Kudu now grows as a container planting in many parts of the U.S. Many cultivars selected for bloom quality and color propagate only through rooted cuttings or grafted seedlings. Cleft grafting works well with this desert succulent, but the plant's tropical growth habits create some tricky timing issues for the home gardener.
Saw off the top of the rootstock Desert Rose plant. Cut straight across, 4 inches above the swollen base of the stem. This swollen portion or caudex stores water for the plant and in seedling Adeniums tapers to a straight section. A proper cut leaves that caudex intact with 4 inches of straight stem above it.
Split the end of the rootstock stem exactly in half with the blade of the grafting knife, opening a split 3/4 inch deep in the stem's top.
Cut a branch of the desired Desert Rose cultivar for scion stock. Scion wood comes from the plant you wish to duplicate, not from the rootstock. The scion should be the same diameter as the cut stem of the rootstock. Trim the scion to a 6 inch long section with at least three bud nodes. Discard the rest of the donor branch.
Trim one side of the scion's base, starting 3/4 inch from the base and cutting straight to the center of the scion's end. Turn the scion over and make a matching cut on the opposite side. The two parallel cuts should meet in a sharp wedge with flat sides.
Twist the split stem slightly open with the grafting knife and insert the trimmed end of the scion. Press the two sections together. Cambium layers on both sides of the scion should match up to the cambium of the stalk.
Wrap from 1/2 inch below the graft upward to 1/2 inch above the graft with grafting tape.
Seal any gaps in the covering--and any injured areas still exposed--with grafting wax. Remove the grafting tape in 6 weeks after the scion begins normal growth and the graft completely heals.