Grace, I have seen on the web pictures of Sans which look blue - I'll try and find out a name for you later. They were the S. trifasciata type.

I found a few that look blue, but in other pictures they look greener, for instance, S. trifasciata 'Lilian True' which looks blue to me in a couple of pics and green in another I found. I think we need an expert here, Grace! Let's hope one happens along soon!

Marguerite thanks for your help, I appreciate you taking the time to look it up for me. I'll definitly take a look at it. Does anyone else have any suggestions? I love bluish foliags and I absolutly love sans, so a blue sans would be heaven on earth for me!

Grace,
There's a thread on blue leaves in the begonia forum which I need to add more pictures to.

Here is a link that might be useful: Blue Leaves

S. pinguicula is the bluest sanseveria I know of. It's also a choice plant to have and grow.