The walls partially or completely covered with plants (green wallls) are increasingly used in modern interiors. Their attractive appearance for a long period of time depend on the adaptation of plants to existing environmental conditions, but also on the dynamics and patterns of plant growth. In this work, the adaptation of Hedera helix L., Tradescantia zebrina Hort. ex Loud and T. fluminensis Vell. to the growth conditions on the green wall in the 6th pavilion of the Faculty of Agronomy, University of Zagreb, was followed during period of six months. Air temperatures in the vicinity of the wall were favorable for the growth of selected plant species. The plants grew well and had good visual appearance at most positions in the green wall, especially in the part in which plants were exposed to the highest light intensity. Slow growth and deterioration of plants was observed only in the positions with the lowest light intensities. Tradescantia zebrina showed the fastest and most abundant growth, while T. fluminensis had the weakest growth. In investigated spieces, the leaves did not show any significant macroscopic changes. However, newly developed leaves had significantly lower number of stomata per unit leaf area, in all three species, and in Tradescantia zebrina and T. fluminensis also had thinner adaxial epidermis. The observed changes are likely result of the adaptation of leaves to lower intensities of light.