For back fence...Limelight hydrangeas. They grow up to 8 ft tall, can grow in full sun or shade and can tolerate dry soil. Beautiful!
Small Patio Decorating Ideas by Kelly of View Along the Way
House & Home Photo Gallery: Small Patios, Porches & Balconies Contemporary Back Deck | http://houseandhome.com/design/photo-gallery-small-patios-balconies?page=0 | "built fence with lattice sections stained opaque black boxed in with frames and posts and backed with solid boards for privacy, graphic rug, potted plants," small bench takes less space than sofa
$50 fire pit using concrete tree rings
Tall Mocha Square Patio Heater | Daily deals for moms, babies and kids