The bachelor thesis is focused on monitoring the influence of water deficiency on model woods of Cornus mas L. and Lonicera caerulea L., where parameters of relative water content in the leaf (RWC), permeate leaf conductivity (gs) and percentage water content in the substrate were observed. Experimental plants of Cornus mas L. and Lonicera caerulea L. responded to the lack of water by reducing the conductive conductivity of the leaves and limiting the loss of water by evaporation. It also monitors the impact of the urbanized environment and the negative factors affecting the vitality of the plants in the urban environment, as well as morphological and adaptation mechanisms against drought.