OK, if I want to contain them, which I do, how deep would, say, a raised bed need to be or a container to put into the ground? Do the roots grow close to the surface or go very deep?
And are they invasive enough to not want to just grow wild on the property?
I’d google it or ask Grok (Elon’s X AI). Much better than a search engine. If you tell it your climate, area, etc., it will give specific advice!
I think the roots go deep because they survived my drought while everything else not watered died. But a deep raised bed with some deep edges in the soil could be good—just use that bed for only sunchokes.
But I only have 3 years experience. I should have said the first year I thought they died because I didn’t recognize the plants without flowers!