12th October 2016
A Vietnamese species collected by Crug Farm Plants in mountains in the north of the country under number BSWJ11818.
They suggest that it could be hardy in a protected position but in my experience it is very slow to get started in the spring
and is unlikely to last long without a very hot summer to complete its annual growth cycle. I have only flowered it once, in
a closed greenhouse that reaches silly temperatures (upper 30's C) if the sun comes out.