蓝翠楼，皇冠型。花蕾圆尖形；花粉蓝色，瓣端粉白色；花径16cm×8cm。外瓣2轮，形大质硬，基部具紫色晕；内瓣整齐，紧密隆起；雌蕊瓣化成黄绿色彩瓣。花梗较细而软．花朵侧垂。晚花品种。
株型高，开展。枝粗壮，一年生枝长而粗，褐色。节间较长。大型圆叶；总叶柄长约15cm，粗壮，斜伸，紫褐色；小叶卵形，肥厚而大，质软下垂，缺刻少，端钝，边缘略上卷，叶面深绿色。生长势强，花形丰满，萌蘖枝较少。菏泽赵楼牡丹园1966年育出。
Lan cuilou. Crown type. Flower buds rounded and pointed; Pollen blue, petal end pink white; Flower diameter 16cm × 8cm。 The outer valve is 2-wheeled, large and hard, with purple halo at the base; The inner valve is neat and tightly uplifted; Pistil petals turn yellow green. The pedicel is thin and soft. The flowers hang on the side. Late flowering varieties.
High plant type, development. The branches are thick, and the annual branches are long and thick, brown. Long internodes. Large round leaves; The total petiole is about 15cm long, thick, obliquely extended, purple brown; The leaflets are oval, fat and large, soft and drooping, with few notches, blunt ends, slightly rolled edges, and dark green leaves. Strong growth potential, plump flower shape and less sprouting branches. Heze Zhaolou peony garden was raised in 1966.
