Decorative qualities of species and varieties of girobins in the conditions of climate of the Republic of Mari El

This article presents the results of a study of seasonal development and decorative qualities of 8 species and varieties of hazel grouse collection BSI PGTU. The decorative qualities included the height of the plant, the degree of leafiness of the shoot, the number of flowers on the peduncle, the size of the flowers and their color (RHS Color Chart), productivity and duration of flowering. And also considered the percentage of crop safety after wintering.