Gardens tend to consume massive amounts of water; something that's becoming an increasingly scarce resource. Irrigation accounts for the bulk of water use in homes, particularly in drier areas over the summer months. A few of the biggest mistakes made are:
a) Plant selection; usually by using plants that aren't native to the area
b) Sprinklers that throw water up into the air, which is then windblown or evaporates
c) Watering during the hottest part of the day
Here's some tips for reducing your garden watering footprint - and to save some money on water rates at the same time. More...In Green living tips...