I think it maintains a much fresher flavour when frozen as opposed to drying.

COOL ! This is very good to know. Thanks all !

I individually quick freeze then place in a large freezer bag and pull from the bag constantly until gone.

lemongrass freezes very well. I wrap it in plastic wrap and then put it in a freezer bag all the better to see it. Just take out what you need.

Thanks! Will try both amanda and prettyPeas ideas.

I know that you can also dry it by hanging it upside down as you would other herbs, though I have yet to actually try this myself.

I've also kept it frozen after chopping finely and adding some neutral oil. It makes it really quick to make the marinade for grilled pork, one of my favorite dishes. http://www.vietworldkitchen.com/blog/2009/04/vietnamese-restaurantstyle-grilled-lemongrass-pork-thit-heo-nuong-xa.html

Lemongrass freezes well -- I've wrapped whole stalks in plastic wrap and then foil and they've kept well for many months.