Heavens yes, a straight seam with that fabric is fine. But what I have done in certain circumstances if I've had to piece a border that I would rather not have to piece, is to insert a piece of some of the patterned fabric I've use in the quilt, usually only 1-2" wide, and make it look like a "design decision" rather than a place where I really didn't want to seam the border. Also I've pieced several of the fabrics from the inside of the quilt that are about 1/2" wide and pieced to make a section about 2" wide and inserted that. It ends up looking interesting, and makes the seamed area part of the design.