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紫叶李(Prunus cerasifera var. atropurpurea)为蔷薇科李属欧亚李的变种。是点缀绿地的优良彩叶植物。但在河北宣化地区,其栽培却常以失败告终,从而限制了它在园林中的应用。抽条就是树木越冬后枝条干枯失水的现象。宣化的地理位置介于长城与张北高原之间,属半干旱大陆性季风气候。冬季寒冷干燥,春季风大少雨。紫叶李在此越冬后均表现出不同程度的抽条现象,以致很少有人再使用它。紫叶李在宣化只能在背风向阳的小庭院环境中安全越冬,在空旷地越冬后有70％～80％的新梢抽
Prunus cerasifera var. Atropurpurea is a variety of Eurasian plum of the genus Rosaceae. Is embellished the excellent green plants of colorful plants. However, in the Xuanhua area of Hebei Province, its cultivation often ended in failure, thus limiting its application in gardens. Drawing is the tree branches after the winter dry water loss phenomenon. Xuanhua’s geographical location between the Great Wall and Zhangbei Plateau between the semi-arid continental monsoon climate. Cold and dry winter, spring and summer rainy days. Purple plum in this wintering after showing varying degrees of pumping phenomenon, so few people use it again. Ziye Li in Xuanhua can only be safe in the sunny leeward courtyard environment winter, after the wintering in the open 70% to 80% of the new shoots pumping