Seasonal rhythm of Deutzia amurensis (Regel) Airy-Schaw development by the introduction in Bashkir Cis-Urals

According to phenological observations, Deutzia amurensis (Regel) Airy-Schaw, its vegetative period begins in the third decade of April. The beginning of blossoming of the studied species is at the end of May. Duration of blossoming is 19 days on the average. Seeds ripen in the second decade of October. Duration of the vegetative period lasts 169 days on the average. Index of phenological atypicalness is minimal (point 3). Winter hardiness - I point.