First emerged a pointed green shoot. That revealed itself to be a bract, now about 8cm tall. Another pointed green shoot emerged from this bract, now to a height of about 25cm. This second pointed green thing is almost cylindric, with a distinct channel or gap down one side, too tight for me to see what is inside. I might add I don't know how large the mature tubers are. I received two tubers, both of which are growing. The second one has just begun cracking the surface. The larger tuber was about half the size of a dried prune, and the smaller one about the size of a raisin. Leo Martin Zone 9? Phoenix Arizona USA