For a tall, noninvasive grass I really like my zebra grass. Hardiness zone listed as 5-9. Here we get spells of overnight lows to -16 pretty much every winter. I have grown them for roughly 15 years and had zero die. They can be cut back in all to allow sun in during winter or allowed to stay til spring for winter interest.
https://www.thespruce.com/zebra-grass-information-2132485
https://www.thespruce.com/zebra-grass-information-2132485