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牡丹宜植于夏季凉爽、冬季不过度严寒的温带地区。那么在年平均温18.6℃、呈亚热带气候的万县市,盆栽能否开花呢?不少专家持否定态度。然而,笔者1985年春引种的一株黑牡丹分蘖苗,经在居室凉台盆栽几年后,1991年3月下旬却开出了大朵优美的花,打破了千百年来认定牡丹必须通过“低温春化”阶段才能很好开花的论断。此花花期13天,花冠横径18.2厘米,纵径21.4厘米,呈圆柱形,深紫红色,十分美观(见照)。现将栽培管理技术简介于下:
Peony should be planted in cool summer, the winter is not too cold in temperate regions. So in the annual average temperature 18.6 ℃, was a subtropical climate in Wanxian City, potted flowers? Many experts have a negative attitude. However, a black peony tiller developed by the author in the spring of 1985 was planted several years later in the balcony of the living room. In the late March of 1991, a beautiful flower of large size was blossomed. It broke through thousands of years that the peony had to pass the low temperature Vernalization "stage can flowering good argument. This flowering period of 13 days, 18.2 cm diameter corolla, vertical diameter of 21.4 cm, cylindrical, dark purple, very beautiful (see photo). Now cultivation management technology profile in the following: