Most tall stalky and or hollyhock like plants like this I cut back where plant gets "long" and "leggy" a few inches above where bottom tuft of leaves ends and "stem" begins. :)

Thanks for the suggestion on how to cut back. Seems a shame, I get a lot of lovely pink flowers for a couple of weeks, then very little activity. I'll try your idea.

my first rose mallow just blossomed and i'm pure loving it! so what do i do to keep it safe all winter? i would love to get tonz of advice! i'm a newbie to this site and to flower gardening....thanx debbie