Nope. That is considered a fragment.
The subject is present: A bushy, overgrown hedge [located] along the fence.
This can't be complete, however, because there is no verb and such to explain much else.
A complete sentence could be "A busy, overgrown hedge along the fence caught my attention."
*caught is a verb.
I think it means if you hurt my friends, I will kill you.
In literature a symbol can be subtle or obvious. In 'The Raven' the symbol is obvious. Poe himself meant the Raven to symbolize 'mournful, never-ending remembrance.' Our narrator's sorrow for his lost, perfect maiden Lenore is the driving force behind his conversation with the Raven