i just found a couple Orbit hose valves controllable by Iris/SmartThings via zigbee. i saw them on a clearance shelf by the lightbulbs last week but didn’t notice the Iris logo. they were $10 each, regular $40. DH here seems to work, valve clicks at least (haven’t hooked to hose yet)
https://www.lowes.com/pd/Orbit-Iris-Hose-Faucet-Water-Timer-Works-With-Iris/50140356