Collect seeds in fall, clean them, and cold stratify before sowing
Take softwood cuttings in late spring to early summer
Take semi-hardwood cuttings in mid to late summer
Use a rooting hormone on cuttings
Plant cuttings in a well-draining propagation mix
Keep cuttings warm, humid, and out of direct sun
Air layer a healthy branch in spring or early summer
Remove rooted air layers and pot them up
Graft desired cultivars onto suitable rootstock in late winter or early spring
Keep newly propagated plants evenly moist until established