I've grown garlic in containers for the last few years, sown in late winter. This time though I planted it in October for hopefully a bumper harvest. However as there's still no sign of anything sprouting, I dug up a few cloves to see where things were at. To my surprise there were neither any roots nor any shoots, but the cloves hadn't rotted away. I presume this is not normal? I wonder should I hold out for another while and hope they will sprout, or should I give up? If so is it too late now to put in new cloves?