I have a pretty monster beard at the moment, but this is mainly due to extreme laziness on my part. I started to grow it back at the beginning of June, cycled across Europe, and by the time i got a couple of weeks ago it was pretty big. I'll eventually get tired of it, probably in a few months time.
I keep trying to grow a beard, but it itches too much.
You just need to grow through it, there is an itchy phase, but it only lasts a week or two at most, then when it gets a little thicker, it stops.