Hi there this is my first time posting here. I'm over the other side of the pond in Edinburgh.
I bought a n x bill Bailey in 2012 in a small bio dome which contained two small plants, from a very reputable cp nursery in the uk who buy direct from BE. It is flowering for the first time this year for me, so when I knew it was starting to put out a flower stalk I arranged for some interesting pollen to be sent to me, the different types have already been sent. And too my surprise my bb has opened a make flower, this so weird as another uk grower a few years ago flowered his bb and it was a female. Both of our plants look identical, I believe he purchased his from the same nursery around the same time. So my question is, can a nepenthes change sex?