Lemon grass is a natural mosquito repellent and grows quite tall. Plant some in deep planters and place on the patio or where you will have people sitting, and you will also have a privacy hedge with the height the grass grows.
Bamboo Although it's a fast-spreading menace when grown in the ground, bamboo is a dramatic specimen plant when grown in a large container (where it can't escape). It makes a perfect, fast-growing screen. Name: Phyllostachys aurea Size: To 20 feet or more Growing Conditions: Full sun and moist, but well-drained soil