Answer:
Though not a plant I have leaves. though not a beast I have spine. Though many wouldn't need me I am more valuable than wine.
I shrink smaller every time I take a bath. What am I?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
When young I am sweet in the sun. When middle-aged I make you gay. When old I am valued more than ever.
I'm found in socks ties and hands. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.