I never blanch mine. I do, however, flash freeze them by putting them on a cookie sheet in a single layer, freezing them, then bagging them after they are frozen. Helps preserve that lovely texture. My understanding is that blanching will help prevent browning in the freezer, but mine never last long enough to brown anyway so I figure why bother?
CD'ing, homebirthing, milk making school teacher. Supporting my family on my income and trying to get out of debt in 2013!