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育苗试验表明，原分布在中亚热带的深山含笑基本能适应北亚热带南京地区的气候，正常生长发育。其种子发芽出土、形成幼苗需要较高积温，在塑料薄膜棚内，约需４０ ｄ。苗期生长呈单峰“∧”字形，４～６ 月生长缓慢，生长量占全年１４－４ ％ ；７ ～９ 月速生，生长量占全年８１－６ ％ ；８ 月生长量呈现峰值，占全年３９－９ ％ ；１０ ～１１ 月生长趋于停滞。１ ａ 生苗高１１－５ ～２９－０ ｃｍ ，平均高２３－４ ｃｍ ；２ ａ生苗高６５ ～１０６ ｃｍ ，平均高９４－０ ｃｍ 。苗木不耐寒，在－ ４ ℃自然低温时，１ ａ 生苗寒害率达３０％ ，需采取防寒措施。叶面喷施硼、锌、锰、镁等微量元素和磷钾肥液，能显著促进生长，减轻寒害。苗木高生长与气温、日照、蒸发量关系密切，适当减少日照，降低蒸发，增温保湿是保障引种的关键。
Nursery experiments show that the original distribution in the subtropical mountains can basically adapt to the North subtropical Nanjing climate, the normal growth and development. The seed germination unearthed, the formation of seedlings require a higher accumulated temperature in the plastic film shed, about 40 d. The seedling growth showed single peak “∧” shape, slow growth from April to June, growth accounted for 14-4% of the whole year; July to September rapid growth, growth accounted for 81-6% of the full year; August growth showed a peak , Accounting for 39-9% of the whole year; 10 to November growth tends to stagnate. The height of 1 a was 11-5 ~ 29-0 cm with an average height of 23-4 cm. The height of 2 a was 65-106 cm with an average height of 94-0 cm. Nursery stock is not hardy cold, - 4 ℃ natural low temperature, 1 a cold damage rate of 30%, cold measures to be taken. Leaf spraying boron, zinc, manganese, magnesium and other trace elements and phosphorus and potassium fertilizer solution, can significantly promote the growth and reduce the cold damage. Seedling height growth and temperature, sunshine, evaporation is closely related to the appropriate reduction of sunshine, reduce evaporation, warming moisture is the key to protect the introduction.