Board Thread:General Discussion/@comment-24101096-20160624225339/@comment-27701762-20160624234843

Well, the quote Alphys uses is about giving something without a soul a will to live, not something lifeless. Obviously plants are living matter. But what is lacking is any sort of consciousness and will. And plant doesn't take in sunlight and water because it knows that such is good for it. It takes in those things because that is simply what a plant does. The plant's specific pull, if it can be said to have any, would be toward growth and flourishing as a plant. If there is something there, it would be a desire for light and water and nutrients. It would be akin to being hungry or thirsty - it is something that you can easily satiate, and once done, no longer bothers you. But it wouldn't really be a matter of conjoining two souls (since, after all, the essence of Asriel is soulless as well). It would be like imparting a previously formless consciousness into a material body: the conscious being must simply learn about the body's needs and satisfy them as necessary.

This all assuming, of course, that the flower behaves in the exact same way once injected with determination. Perhaps the alteration leaves the flower without any need for sustenance whatsoever.