INTRODUCTION AND VARIETY OF CHRYSANTHEMUM × HORTORUM BAILEY IN RUSSIAN WET SUBTROPIC CONDITIONS
41 varieties of large-flowered chrysanthemums ( Chrysanthemum × hortorum Bailey) are represented in the collection of the Federal Research Center the Subtropical Scientific Center of the Russian Academy of Sciences. 19 varieties grown in open and closed grounds is included in the variety study. It is noted that varietal characteristics and growing conditions affect the flowering time and biometric characteristics of plants. Thus, plants in open ground are characterized by a later onset of the main phenological phases of development and a shorter flowering period. And plants in closed ground have a significant decrease in the diameter of inflorescences and other morphological signs of chrysanthemums.