Ramet groups of different sizes of Carex curvula subsp. rosae were transplanted to alien soils where the species could not be found naturally. The aim of the investigation was to analyze regeneration ability, morphological plasticity and nutrient absorption of the species on the alien soil types dolomite and silicate and on the typical soil, respectively.High losses of ramets were measured during the first year after transplantation on each of the three soil types. In the second year, an overcompensating growth was observed on the typical soil whereas the plants on the alien soils were not able to compensate the ramet losses. The production of leaves per ramet was also significantly lower on the alien soils. Even though the amount and the size of ramets varied significantly, the typical phalanx growth form did not change at all.On the typical soil, regeneration growth was clearly affected by the size of the ramet groups. On the end of the investigation, the amount of ramets was four times higher within the group of initially 10 ramets whereas the group of initially 30 ramets increased only the 1.6-fold. The nutrient content in the plants varied according to the chemical composition of the soils. The limited growth on the alien soil types seems to be caused by the nutrient ratios.