Plants can obviously react to light. Photosynthesis, that's how they get their energy. Most plants seek light one way or the other. Assuming the plastic plant

Plants can obviously react to light. Photosynthesis, that's how they get their energy. Most plants seek light one way or the other. Assuming the plastic plant really turn out to have an effect, It would be possible, I think, for a plant to somehow sense shade patterns using photosensitive chemicals diffusing through the plant at specific speeds.