Very different conditions here, from Leo's, but S pole evansiae is growing well for me, from Rachel's seeds which I sowed in June 2013. I give very little fertiliser and there is some clay in the compost, as well as leafmould sand, grit, bark and perlite They have been growing along side Petrocosmeas and Rhipsalis in my north facing bathroom. They are all treated similarly. 100% germination. I am about to repot with leafmould and grit with a little added clay and bonemeal https://flickr.com/photos/66380714@N06/… Peter (UK)