I left my potted Chelone outside in a protected area this winter. I'm not sure if the branches are dead, but there are tiny shoots coming out only at the soil level. Does that mean last years's growth is dead? I'm inear NYC and its Apr 8, 2020.
Chelone is a herbaceous perennial so yes, last years growth above soil level will have died and new growth will come from the roots this year. You can just cut off the dead stems. Hope this helps.