Introduction studies of the genus Hemerocallis L. in the Polar Alpine botanical garden and institute

As a result of the introduction studies of the genus Hemerocallis L., it has been established that in the conditions of the Kola Arctic, it is possible to successfully preserve and grow a large number of wild-growing species of this genus, relocated from various ecological and geographical areas of the globe. The results of ecological and geographical analysis indicate that the species of the genus Hemerocallis obey the General laws of plant migration to the Polar North. The survival scores (SS) and the introduction coefficients (IC) of plants of the group of obligate oreophytes of the subalpine belt (H. dumortieri, H. forrestii) and the taiga zone (H. lilioasphodelus, H. middendorfii. H. yezoensis) are approximately the same SS - 4.1 and 4.5, IC - 0.8 and 1.0, respectively. Plants with a wide ecological amplitude (H. esculenta, H. minor (SS - 6.5, IC - 1.5) better adapt to the conditions of the Far North. These species are able to go through a full cycle of development in a short Northern summer, which usually does not exceed 90-115 days. The worst adapted to the new living conditions of plants found only in the broad-leaved forest zone (H. fulva var. aurantiaca: SS- 1.0, IC - 0.2). For further scientific and economic use of plants of the genus Hemerocallis in the Kola Subarctic should attract species that live in nature in the taiga zone, as well as in the sub alpine zone of the mountains.