I'm looking for a plant to meet the following requirements:

• Will grow in a container (nothing massive) on my balcony
• Fast growing (will cover a 3 foot trellis in 1-2 months)
• Preferably will also grow up a string or wire (strung between the trellis and my apartment wall)
• Does well with roughly 6 hours of direct afternoon sun
• Something pretty, but does not need to have flowers; should be robust to help provide privacy
• Relatively wind resistant, since it will be on my balcony and the trellis will not be against a wall

I'm in Zone 7b, though it doesn't need to be a perennial or to withstand winter.

Any recommendations? Thanks!