The areca is a clumping palm that spreads rapidly by aggressively growing new shoots.  This growth makes arecas a good choice for a tropical privacy barrier around pools, decks, and property lines.
Areca, Dypsis lutescens
Click on images to enlarge
Areca palms form a wall next to the driveway creating  barrier from the neighors.  Some of the brown fronds were due to cold damage in 2010.
Alex Driscoll
Certified Arborist #1249A