Can someone tell me if Mandragora officinarum is self fertile. Should I be out there in the cold tickling it to help it along. It has looked like this link http://pharm1.pharmazie.uni-greifswald.de/allgemei… ra-o.jpg for some weeks and has several flowers to "open" yet. It reminds me of Audrey2 in the film Little Shop of Horrors, but I have not heard it scream yet. Brian Whyer, zone 8'ish, Buckinghamshire, England