Hi cris, By far, the most popular laurel and most commonly planted for hedging is the (cherry laurel) which is actually a form of evergreen cherry but is widely known as laurel, maybe this is where it becomes "a bit confusing"
It is fairly fast growing and can become a dense hedge with regular pruning, best results are achieved by pruning with secateurs rather than shears.
Left unpruned, it can reach about 16ft.
It is not fussy about soil type, as long as its free draining.
Prune it in late summer/early autumn but never in winter.