Observations showed that A. pavia and A. glabra could bloom at 1 year and 3 years old respectively, while A. octandra had the fastest growing speed, which was not less than that of Zhejiang buckeye.

• 观察发现，红花七叶树和光叶七叶树分别在1年生和3年生时就始花始果，黄花七叶树营养生长最旺，生长速度不亚于浙江七叶树。