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.
The right person who shares your intrests and goals will eventually cross your path
Answer:
I'm pretty sure it is B. To encourage moisture to evaporate
Explanation: