Posted: 18/03/2016 at 11:14
I have grown Artichokes from seed here without problem.
I think because I did not know they were fussy.
I put them in seed mix in my greenhouse and left them to it, some were even outside in pots.
They have grown okay in the garden (I am from NZ where they grew large quickly), but they definitely need to be protected from cold over winter.
I put them as seeds into an already large pot. I did not move them into something else till they were probably about 8-10cm.
I hope that helps. Maybe they just need more light.