Answer:
The person who makes me doesn't need me. The person who buys me doesn't use me. The person who uses me doesn't know it. What am I?
I am flora, not fauna. I am foliage, not trees. I am shrubbery, not grass. What am I?
What is that you will break even when you name it?
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
You throw away my outside, you cook my inside. Then you eat my outside and you throw away my inside. What am I?
No matter how little or how much you use me, you change me every month.