Q: Can mizuna and bok choy be frozen? My garden has an abundance of this right now that needs to be harvested.
Sent by Heddy
Editor: They definitely can be frozen. Cut the greens to the desired size: You don't want to go too small, though; large pieces (about 1 1/2 to 2 inches) are ideal. Dry the greens completely, and then spread them on a tray in single layer and freeze for one hour. Remove the greens from the freezer, and then transfer to freezer-safe bags. Return them to the freezer and store for up to eight months.
There's an additional optional step of blanching, but I find it unnecessary for greens in comparison to say, green beans.
Freezing Produce 101