"Typically, when you plant cloves from large bulbs, and those cloves are larger than average, the harvested bulbs from those cloves will tend to run larger."
Yes, I need to do a better job of selecting larger cloves to plant ! I tend to use up my nicest bulbs first, so by the time I plant the garlic I'm getting into smaller ones already... this year I'll pick out the best bulbs for replanting and set them aside.
