I am pleased to have finally bloomed this and a bit embarrassed that it took me 7+ years to do it. This was moved from my intermediate house in February to the new warm house where the temperature is minimum 65F (at least until I get the heating bill next winter). The umbel is 9" across. The lip is mobile so that slight pressure on it will cause it to swing up towards the column/anther cap. A really stunningly beautiful thing with only the faintest hint of a bad odor.