Just dug up some of my garlic which was planted last autumn. I was looking forward to some nice big bulbs. However, they are not so big. Medium size I suppose but what has bothered me is that the cloves haven't developed. What I have got are just large bulbs. I dug up some as they have sprouted leaves and a flower stalk so I would assume they are ready to harvest.

Can anybody tell me please why the cloves haven't developed?