晚香玉在北京地区五月上旬种植时,单瓣品种于七月下旬达初花期。从种植至开花延续70—80天,至结果期可延续110天左右,重瓣品种则各推迟10—14天。开花物候期与种植期早晚成正相关;与球体重量有关,凡大于11克者当年能开花;对气温,湿度,尤其是土壤湿度反应较为敏感。气温24～30℃为开花 Tuberose in Beijing in early May when planting, single-leaf varieties reached early flowering in late July. From planting to flowering continuation of 70-80 days, the results can be extended to about 110 days, double-breed varieties are postponed 10-14 days. The phenophase of flowering is positively correlated with the planting date; with the weight of the sphere, those with a length of more than 11 grams can bloom at that time; and are more sensitive to the temperature and humidity, especially the soil moisture. Temperature of 24 ~ 30 ℃ for the flowering