Hosta tratt. genus species introduction in the Crimea foothills

The assessment of the success of the Hosta Tratt. genus species introduction in the conditions of the Crimea Foothill zone is conducted. The promising species for the introduction into the green construction of the region are revealed. The physiological zero for 5 hosta species: Hosta sieboldii (Paxton) Ingram, Hosta ventricosa Stearn, Hosta sieboldiana (Hooker) Engler, Hosta rectifolia Nakai, Hosta plantaginea Ascherson is calculated for the first time.