The artichokes are producing ok, it is just that the bulbs are a purple, and in the past they have not been so. The flavor is okay to. The leaves are good. I wonder if it is because they are the 3rd year and need to be replaced, low on a nutrient or if they need to be split? These plants are the splitting of my 2nd year plants. My ggardening books are out of my reach just now, so I hope someone will have an answer for me. thanks.