So this shrub is planted here in my yard in Las Vegas. Las Vegas, as some of you know, has quite hard water. See the pictures of canyon walls near Hoover Dam if you want to see some of the effects. I don't know what kind of soil preparation was done (landscapers installed the tree) but I know our native soil is sandy. What I'm getting is salt burn on the leaves, towards the second half of the summer. Pretty bad salt burn. Just wondering what strategies I should employ to minimize or prevent it. So far I've been told to water twice a week, but deep water it.