Wouldn't it be rhythm, the use of recurring elements to direct the movement of the viewer's eye's through the product of art and give a sense of unity to the composition. correct me if im wrong
My interpretation of this is that the author was hoping for something futile - they 'grew a flower' (put effort or hopes toward) that can't be bloomed (is pointless or futile, will not produce anything) that can't come true (their effort/hope is just a hopeful dream). Basically, the author hoped for something that was not possible.
Answer:
A major
The last sharp in the A major scale is G#