日本落叶松通常靠实生繁殖,但是用扦插也能生根。根据山形县釜渊林业试验场猪濑寅三技师的研究获得了90％的成活率。在同地(最上郡及位村)以八月下旬至九月上旬作为适宜季节,穗长15厘米,用当年枝条。母树以七—八年生 Japanese larch usually reproduce by life, but also can cuttings with roots. The survival rate of 90% was obtained from the study of the three technicians of Seto Yusaka in the Yeongdeok Forestry Experimental Station, Yamagata Prefecture. In the same area (the highest county and bit village) in late August to early September as the appropriate season, spike length 15 cm, with the current branches. The mother tree to seven - eight years old