To provide a lighting device for plant appreciation which needs only a small installation space while securing a function for radiating light to a plant from its lower side.SOLUTION: A lighting device includes: a solar power generation panel 2 which converts solar energy into electricity; a secondary battery 3 which stores electric power generated by the solar power generation panel 2; a light emission body 4 which emits light by the electric power stored in the secondary battery 3 and radiates the light to a plant; and a lighting device body 5 (refer to Fig. 2) to which the solar power generation panel 2, the secondary battery 3, and the light emission body 4 are attached. The solar power generation panel 2 is attached to the lighting device body 5 with its light receiving surface facing upward. The light emission body 4 is attached to the lighting device body 5 so that its light radiation direction is directed upward.SELECTED DRAWING: Figure 1【課題】植物にその下方から光をあてる機能を確保しつつ、設置スペースが小さくてすむ植物観賞用照明装置を提供することが課題とする。【解決手段】太陽光エネルギーを電気に変換する太陽光発電パネル2と、この太陽光発電パネル2によって発電された電力を蓄電する二次電池3と、この二次電池3に蓄電された電力によって発光し、前記植物へ光を照射する発光体4と、前記太陽光発電パネル2、前記二次電池3、および、前記発光体4が装着される照明装置本体5(図2参照)とを備え、前記太陽光発電パネル2が、その受光面を上方へ向けて前記照明装置本体5に装着されているとともに、前記発光体4が、その光の照射方向が上方へ向かうように前記照明装置本体5に装着されていることを特徴とする。【選択図】図1