That Artichoke seedling I started back in March of 2010 grew all summer long up until fall. The cold weather then burned up all the leaves and I trimmed the remaining leaves back to the soil. I thought for sure that the artichoke was dead. Well this spring I noticed that the artichoke root started sending leaves up through the soil. Then I started to do some research and found out that artichokes can die back to the ground in the winter but will then come back up again in the spring.
I started feeding it with a 10-10-10 solution and it seems to be doing well. I have one burned leaf but I attribute that to getting some of the fertilizer on the leaf. So these Romanesco artichokes seem pretty hardy, I think I will start a few more seeds and dedicate a 4x4 bed to just Artichokes.