Plants that are nearly indestructable and info on poke salad.

I have found two crops that don't need much care.Jerusalem Artichokes and Poke salad or poke root.Does anyone know of any others?also would appreciate info on cultivating poke salad in the garden.

Spineless Prickly Pear Cactus, Garlic Chives, Canada Onions, Elephant Garlic, Asparagus.  All of these survive for me with no care, though the Asparagus will not produce substantial shoots unless fed and watered.

Kind of depends on your definition of crops. Wild edibles typically are Hardy competitors.

Others that would do well where poke/sunchoke grow include:

Narrow and broad leaf plantain. Curly dock. Wood sorrell. Wild mustard greens.

As for cultivating poke, I just help it compete by chop and drop what grows near it.

A major time investment but Pinyon/Pinion pine.

Rosemary!  Purple Coneflower