I've grown both Utah Tall as well as Tango celery. Both don't require blanching and are excellent for eating and cooking in soups, etc.
I start them in seedling trays a few seeds per cell, then I will thin out:
Here are the Tango in 31 gallon EarthTainers:
They will also do very well in the Earthbox, 6 plants per box.
Raybo
