Water restrictions in Sacramento are turning many green lawns brown. However, the city says that's not necessary.    

Some landscaping experts say the two days Sacramento residents are allowed to water their lawns should be enough to keep them alive, even though your lawn may not look its prettiest.

A study done by the University of Illinois says lawns only need a-third of an inch of water every three weeks for roots to survive. 

The city has restricted water use, so residents are not allowed to water on Mondays, Thursdays and Fridays. 

One tip that can help your lawn stay green -- or at least stay alive until restrictions are lifted -- is setting your sprinklers to turn on in the early morning hours, so no water is lost to evaporation, and make sure you're watering just enough so that excess water doesn't drain into the gutter.