They are lovely Lesley. Hope you find your hat!!
Given how cold it is in southern Aus at the moment, you can expect more cold weather coming your way too. Wish we could get some rain with it though....... pathetic attempts here so far.
My cvijicii are a single clone, but they are VERY slow to multiply for me here. I've managed to get the original 2 bulbs I was given up to 3, over about 6 years. They're in the shadier area of the new crocus garden now, so we'll see if that helps. I do so love your hybrids though.