However, while the room temperature flower and the cold temperature flower looked pretty similar from the first measurement to the last measurement, the hot temperature flower's appearance changed drastically.
So while the hot temperature flower drank the most amount of water, I believe that it is most beneficial for flowers to drink room temperature water because the appearance stays nice and it drinks a decent amount of water. Having a flower drink cold temperature water also wouldn't be terrible, but it won't drink as much water as a flower at room temperature.