Do you think the sunflower could possibly use heat from the sun?
Ever try to fry an ant with a magnifying glass on a sunny day? No need to do that now, but there is something else that could use some heat.
Center the sunflower on the big spherical plant next to the spiral elevator plant and hold it there for a while. Something should happen!
I've gone from level 9 to levels 7 and 6. What's up with the big fish?