The invention relates to agriculture, cultivation of flowers, vegetables, etc. in greenhouses and greenhouses, particularly to devices for placement of plants and seedlings in greenhouse as well as irradiation (supplementary lighting) plants. The proposed utility model solves the technical problem of increasing the efficiency of supplementary lighting plants, reducing power losses, as well as providing the possibility of regulating the efficiency and intensity of irradiation. To achieve this technical result in multistoried narrowshelving installation for cultivating plants, comprising a frame made of triangular frames, one side of which is a base, and the other pairs are interconnected horizontal shelves for plants placement unit is provided with light sources, in contrast to the prior art, the sources of light linearly arranged on shelves along their entire length, in the upper part of the frame disposed holders for fixing the light source on the upper shelf. When this is the most rational fastening of light sources for irradiation of plants located on the upstream shelves shelves, with holders for fastening the light source on the upper flange are formed as shelves. With this arrangement, the best arrangement is the light source on the free ends of the flanges, the width of the shelves and inclination of crossbars selected proceeding from the condition of light sources over the middle of shelves for placement of plants. The light sources may be in the form of fluorescent lamps with fitolampy or in the form of LED lamps in which light-emitting diodes are arranged along the shelves in one or more rows.Полезная модель относится к сельскому хозяйству, разведению цветов, овощей и т.п. в теплицах и парниках, в частности к устройствам для размещения растений и рассады в теплицах, а также облучения (досвечивания) растений. Предлагаемой полезной моделью решается техническая задача повышения эффективности досвечивания растений, уменьшения потерь электроэнергии, а также обе