Water is vital for plant growth and development. Therefore this study focused on the anatomical and morphological changes of leaves of Satureja hortensis, Borago officinalis and Tropeaolum majus to drought stress and rewatering, which were investegated and compared with the results of the control plants.The investigations were carried out using light and electron microscopy. To destinguish the different structures in the light microscopy, FCA-dyeing by Etzold was used.Leave thickness, cell size of epidermal, palisade parenchymal and spongy parenchymal cells, as far as stomatal size and trichome density were studied because of their relations with the water economy of the plants.The focus was set on leave thickness, cell size of epidermal, palisade and spongy parenchymal cells, stomatal lenght and shape and density of trichomes according to their relation with the water economy of the plants.The anatomic investigations showed, that leave thickness of S. hortensis increased because of drought stress and decreased due to re-watering. The opposite effect was obseved by B. officinalis and T. majus.Thickness of the adaxial epidermis decreased due to stress at all plants and increased thanks to re-watering except for T. majus. The abaxial epidermis thinned because of drought stress by S. hortensis and B. officinalis and also re-watering didn?t have any different effects. The abaxial epidermis of T. majus was unchanged.The cells of the palisade parenchym got smaller due to the reduced watering at all three plants. The spongy parenchyma was more dense by B. officinalis, less densy by S. hortensis and it was unchanged by T. majus because of drought stress.Drought stress caused longer stomata by S. hortensis and T. majus and they were left unchanged by B. officinalis.All these differences showed the effects of light drought stress on the plant-specific development of herbs.