Indoor plants are almost an inseparable part of traditionally furnished but also modern interior. Besides their aesthetic function and ability to improve the microclimate of the flat significantly, more and more is spoken about their sanitary function, i.e. certain species are able to absorb harmful chemical materials from textile used in flats, floorings, paints and plastic materials. Rich and healthy greenery decreases the content of dust elements in the interior by 20 %. This fact is interesting mainly for allergic people. The best effect in the interior has huge plants, but in the present-day flats vegetation hardly can find place on the window. The article includes the characteristic features of plants growing in such way.