Nature has always been the best mathematician. Aeonium a succulent native to the Atlantic islands, growing in perfect spirals without anyone telling it how Chinese Dunce Caps in various stages of maturity. I try to propagate them all year long so some are older and bigger than others. I'm going to start some new propagation containers Hawaiian baby woodrose hi res stock photography and images Alamy Sempervivum Seeds Seeds Hens & Chicks Succulent Seeds trailingpetunia.com