My Curling Peasy

Despite the little purple detour, my Peasy is coming along nicely.  The body is finished (if you don't count the about-to-be-mentioned re-knit) and one sleeve nearly so.

With some patterns, it is obvious as I read through them that changes need to be made to create an easy-to-knit, wearable sweater.  With those designs, I make multiple changes as I knit.  Perhaps I knit in the round rather than back and forth. Or I add length, add shaping or add short rows across the back.  Other patterns give no such clues.   With these designs,  especially when knitting the pattern for the first time, I knit exactly as instructions dictate. Such is/was the Peasy pattern. 

I have been following  Peasy's  instructions precisely,  but there seems to be a problem.  The body finishes  with these instructions: "Next 3 rows: Knit.  Next RS row:  Bind Off."    In other words, the bottom trim is three rows of knit stitch.  Obviously not nearly enough because look at this curl. 

And just as  obviously, not to mention, sadly, this section will require a re-knit.  But what trim will I choose to  give Peasy a non-curling edge?    Ribbing?  It would be the only ribbing on the sweater. Perhaps not the best solution.  Garter?  There would have to be more of it.    Will five rows be enough?   I'll know in a couple of days.