A shading device for a greenhouse includes a shading element and at least one lighting element, wherein the shading element comprises an outer side and an inner side. The shading element is formed from interwoven electrically conductive first thread elements and electrically insulating second thread elements. The first and/or second thread elements each may be adapted for reflecting an ambient light. The lighting element(s) may be arranged at the inner side of the shading element and connected with the first thread elements, and the lighting element(s) may be driven by an electrical current, conducted by the first thread elements, resulting in the emission of an artificial light, which may illuminate a plant growing in the greenhouse.