We've started marking our irrigation valves in the native grass areas with blue plastic stakes. We formerly used small irrigation flags but had trouble with the plastic flags detaching. It is important that we mark the valves in the high grass so we can find them when needed. Oftentimes the valves get covered over by gopher mounds or become obscured by the long grass. The blue stakes just signify where there is an irrigation component.
If you happen to need to remove a blue stake to play a golf shot, please replace it. Thanks!!!