Posted: 17/03/2014 at 20:21
The dragon's teeth is a reference to Greek mythology. Can't remember if it was Heracles that was tricked in to sow the teeth but the result was that an army sprung up where he sowed the teeth. Bindweed might have been a better reference as it is that it does when the roots break.
I thought you could propagate it easily without any leaves on the root just pop it in the ground.
Not sure if mine would be regarded as big but it was hell to shift. I think the root was bigger than a pound coin at the top