Unidentified pink flower

Can anyone ID this for me please?



Not one I've planted but must be fairly hardy because it's planted in very little soil down a narrow strip next to the fence.

 

Could it be Schizostylis?

 

I agree it looks like a Schizostylis. Although I believe they have been renamed and are now called Hesperantha.
Nigel

 

Thanks both

I think I'll go with 'Hesperantha' because the alternative is too hard to spell or pronounce

 

They used to be called kaffir lilies but I believe that is now politically incorrect.