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油茶花芽于6月下旬至7月中旬形成,11月上旬为盛花期,幼果于翌年4月上旬开始发育,6月下旬形成幼胚,10月果实成熟。异花授粉结果率高于自花援粉。胚珠不能形成功能性8核胚囊,合子发育时受阻,P、K、B、Zn营养元素缺乏,以及病虫和冻害等为造成落花落果的主要因素。
Camellia flower buds formed in late June to mid July, early November for the flowering period, young fruit in early April the following year began to develop in late June to form immature embryos, October fruit ripening. Cross-pollination result rate is higher than self-pollination. Ovule can not form a functional 8-nucleus embryo sac, obstruction of zygotic development, lack of P, K, B, Zn nutrients, and pests and frost damage are the main factors causing the drop of fruit.