Answer: You can propagate them by cuttings dipped in a rooting hormone and placed in a well-drained rooting medium. Cover with a clear plastic cover to hold in moisture, and place in a bright spot out of direct sunlight. Rooting will occur in 10 days to 2 weeks. You can also try "tip layering" a branch in the soil next to the mother plant.
The following two sites offer a detailed explanation of how to root cuttings as well as how to "layer" a plant.
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