Christmas Cactus

Horrible wet and dreary day today, so have not ventured over the doorstep.  I blipped the cactus in the porch a while ago full of buds, only one flower has opened so far.  However this one on the back bedroom windowsill has suddenly burst into life.  Plants seem to do really well in there, we call it the plant hospital, one looking a bit sorry for it self soon perks up in there.