Andrew I don't either. I forgot which list I was addressing. I have a few geophytic species, P. incrassatum, longifolium, auritum and rapaceum but they don't flower until later in the winter for me. The last is now 13 years old but has flowered for me only once. They all grow in a frost-free greenhouse but our winter weather is pretty sunless. When the Azores high reaches up this far we tend to get a layer of thick cloud and Scandinavian highs bring sun but very low temperatures, the rest of the time it is a succession of Atlantic lows with wind & rain! Erle