I think it’s possible that you can’t kill a Hosta unless you dig it up and throw it in a trash can. Otherwise, they seem to be impermeable to weather, drought, flood and getting eaten by miscellaneous wild creatures.
We had a few Hosta when we moved into this house. I moved them to a sunnier location and they have thrived ever since.
There are also some large violet leaves mixed in. Violets — at least the wild ones — are also unkillable.
NOTES FOR THE HUNGRY:
Hostas are edible when young and sheltering when older. … In fact, the Japanese have been eating hostas safely for centuries. Known as urui, they’re commonly boiled, fried in tempura or eaten raw. With a flavor reminiscent of lettuce and asparagus, they can easily be substituted in salads.
I’m sure they are best when they are fresh and not when they’ve had a whole summer to turn to leather.