Water Line to Greenhouse

Hi,

I was thinking of running a water line to my greenhouse to supply a drip irrigation system. I was thinking of burying a hose, a heavy duty metal hose, which I would detach and flush before the winter. I could even add some sort of solution that will resist freezing so it doesn’t burst during the winter.

I also have a smart valve that I attach at the hose spigot that turns the supply off and on when I need it to water.

Is this a viable solution? Or do I have to use PEX?

Thanks!