Knitting Perpendicular Surfaces

I am trying to knit a cylindrical surface with a planar surface (that is larger than the cylinder and perpendicular to it).  When I try to knit the two surfaces, it tells me the selected surfaces cannot be merged even when they intersect.  I have tried extending the cutting surface through and trimming, then knitting, but nothing has seemed to work.  It seems like this is possible, anyone know how?

SolidworksSurfacing