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蜡梅的腋芽为复芽，由主芽和副芽上下叠生构成。副芽由枝隙薄壁细胞群经反分化形成的芽原基发育而来，可形成多级副芽。副芽一般为叶芽，多处于休眠状态，枝的更新有赖于副芽。蜡梅具有顶梢自枯习性，假二叉分枝。枝条一年多次生长，春梢加长生长主要在四月（扬州），时间短，速度快。花芽分化与新梢生长密切相关，春梢加长生长减缓时正是春梢花芽集中开始分化期。蜡梅的雏梢和未木质化枝条、花（果）梗截面为四棱形，是由于形成层和其外侧４个具有有限分生能力维管束活动叠加的结果。
Chimonanthus axillary buds for the complex bud, from the main buds and secondary buds stacked up and down form. Associated buds by the dendritic parenchyma cell group by the differentiation of the bud primordia developed from the formation of multi-level buds. Sprout buds are generally buds, mostly in dormancy, the regeneration of branches depends on the secondary buds. Chimonanthus has top-tip self-destructive, false bifurcation. Branches grow many times a year, spring shoot longer growth mainly in April (Yangzhou), a short time, fast. Flower bud differentiation and shoot growth is closely related to the growth of spring shoots slow growth is the spring shoot bud focus on the beginning of differentiation. Chimonanthus chinensis shoots and non-lignified branches, flower (fruit) stem quadrilateral prismatic cross section, due to the formation layer and its lateral four limited meristematic vascular bundle activity results.