What am I?

It raises its head at morning's first light and bows to the stars as they light up the night.

It withers in the heat and is killed by the frost, it wants to be seen, no matter the cost.

It doesn't seek fame and knows not of beauty, but to live and be free is it's only duty.

I used to write poems for my wife all the time. I wrote this last night in the matter of one minute. I told her that it was for her but not about her. I will leave it at that. Please take a stab in the dark.

Im Just curious as to what everyone else's thoughts were. Read into it what you like, take from it what you will. What do you think it is about???