This beautiful planter/light sculpture concept, called Schattengewächs, belongs to German designer Maximilian Winkel. Unlike its botanical relatives, these ‘flowers’ are powered by darkness rather than sunlight. The light is turned on automatically thanks to the photosensor hidden in the pot. The engineering behind the Schattengewächs is fairly simple – it is powerd either by four coin cells or by two contacts (anode and cathode) directly from the soil of the flower pot. The contrast between the real planter and the light flower projection has some subtle humor to it. The Schattengewächs can add a nice accent to a roofdeck or a balcony (if you are blessed with those) and also illuminate any dark indoor area.