I live in Berkeley CA
You could try that. They get very tall and spread and would need to be thinned as they will crowd the container.
https://www.gardeningknowhow.com/edible/vegetables/vgen/perennial-vegetable-plants.htm
https://hgic.clemson.edu/a-re-acquaintance-with-sunchokes-aka-jerusalem-artichokes/
https://content.ces.ncsu.edu/growing-jerusalem-artichokes
There are a few blights that affect artichoke. This photo, alone, will not be enough to identify the exact pest. It does look like a fungal infection. This is usually due to wet, or heavy soils that do not have a chance to dry out between waterings.
As long as very little of the plant is showing symptoms, you may be able to save it. You will need a fungicide.
Here are some articles that will help:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/garden-how-to/info/homemade-fungicide.htm
https://www.gardeningknowhow.com/edible/vegetables/artichoke
I ordered in February for early May planting jerusalem artichokes. The seed company delayed delivery instill June for Vt. Therefore no tubers grew 110 days. I know someone grows them 12 miles from my home. Will they regrow without tubers? By cutting tops and leaving this year's roots in the garden?
Cut away any dead foliage, but leave the roots undisturbed. They should continue to grow next spring. They are hardy in zones 3-9. I suggest mulching well after the first frost.