Q.Artichoke Plant, Beginning 2nd Year, Leaves Are Yellowish Then Brown. It\’s In A Pot, Do I Need A Bigger Pot? The Other One Is
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Certified GKH Gardening Expert
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