The Neon does go dormant in winter. I leave the dead stalks for wild life to feed off the seeds. At the first hint of new growth peaking through the soil in spring I carefully cut out all the dead stalks. It is so much fun watching them poke out of the ground in spring. I also like the winter interest of the dead stalks. It is a personal preference, some people don't like it. : )
Pink Bomb should also be winter dormant and can be handled the same as Neon.
Can't wait to see photos Jelinda. What a great day at Lowes.