Bamboo - dramatic specimen plant when grown in a large container (where it can't spread). It makes a perfect, fast-growing screen. 20 feet or more. Full sun and moist, but well-drained soil. Grows well in a container.
Wind block trees for fire pit: Spartan Juniper - columnar shape with very dense branches and reaches a mature height of feet, making it a good selection for those desiring a privacy hedge or wind barrier.