Artichokes are perennials I'm told and start producing during their second year. The reason I had to chill them (a process called vernalization) is to trick them into thinking they had gone through a winter so they would produce in one season as they won't live through our winters. Certainly in warmer regions where they can live year round they would probably start to produce during their second year without the "fake winter". Back at the beginning of this thread when I was just trying to learn how to make them produce in my zone, all of this was discussed, and explained nicely by some helpful people.
TK I started my seeds individually in 4 inch Peat pots. That seemed to give them enough space to grow into plants to put in the ground without having to transplant them into larger pots as they grew. Plants are adaptable enough to deal with a wide variety of care. If they start to wilt before you water them they will recover, but I don't like to weaken them like that so I tried, not always successfully, to water them often enough so they didn't wilt.
Here they are just getting their secondary leaves
This is what they looked like shortly before I put them in the garden. They are still in the same peat pots.
Here they are with the chokes showing in July
The harvest
I can just taste them