$hit I fed the same ones to Betty for two years the die every winter so should Betty be fine she ate about 8 in two weeks.
They are probably not surviving because you need to bring them inside so they don’t freeze. These are tropical plants & won’t survive in Pennsylvania in the Winter. Keep in pots, bring inside once the frosts arrive. Need good water, & bright lights.
Ogh...forgot to ask - you bringing inside in Winter?