a daylily-free zone

ok, so....the 12 by 12 foot section of planting bed i am creating from dead lawn will be a certified daylily-free zone......a distinction hard to come by in my little section of eden.....even the beds i painstakingly cleared of daylilies last fall are again matted with sprouts......and while i have taken to plucking them like som many dandelions....the truth is this.....daylilies are like cockroaches.....they will likely survive the nuclear option......but my new bed is an extension of a lily-free bed....and i am confident that any and all plants located there will be safe from the muscling- charms of the day lilies......