Answer:
What is often returned but is never borrowed?
You need a key to receive an answer from me. The answer you'll find is straight from your mind. What is it?
You'll see savory dishes in Hong Kong sizzling in these.
Grows from the ground, bushes and grass, leaves of yellow, red and brow, unruly plants, get the axe, trim the hedge back down.
What do you throw out when you need it but put away when you donβt?
I'm the source of all emotion but I'm caged in a white prison.