The primary propagation methods for olea include seed sowing and semi-hardwood cuttings. Successful propagation heavily relies on factors like optimal light, controlled temperatures, and well-draining soil. Special techniques, such as stratifying seeds or using rooting hormones on cuttings, enhance rooting success. Propagation of olea is generally moderate in difficulty due to challenges like slow germination and susceptibility to root rot. To propagate by cuttings, follow these steps: 1) Select healthy, semi-hardwood branches, 2) Cut 4-6 inch sections, strip lower leaves, 3) Dip cut end in rooting hormone, 4) Plant in well-draining soil mixture, 5) Keep in a warm, humid environment with indirect light, 6) Allow rooting over several weeks, 7) Transplant once established.