They WERE all the same distance from the light, the left ones grew taller, until I couldn't raise the light anymore. The light on the right is 1" from the top of my broccoli plant. That's the best I can do. If I measure only the plant above ground, the difference is 13" and 9", but then you are ignoring the fact that what is now included as root, used to be a very tall plant. Which is why I measured the total plant.
