Water them more and make sure that the water is getting down to the roots. Shallow sprinkling won't help. Also, Reno is very hot and dry. Artichokes grow best when the weather is cooler and moist. If yours are in full sun you might consider rigging something like a cheesecloth roof suspended over them. Then use a fogging nozzle to mist the cheesecloth and surrounding area.

Best wishes,
Carole

Thank you Carole! In all my researching, I didn't know that I would need to shade them in our area! The roots do get a good watering with how we rigged up the drip system. I guess I'll be spending the evening sketching out how I'll do the cheesecloth roof :)