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They rely on seasonal showers in parts of the country where proper irrigation channels are absent.

It can grow up to 5 feet tall, and may lose many of its leaves in the summer, but occasional hot-weather irrigation will help retain its foliage.

If drought conditions become severe, the government can restrict irrigation of farms, reduce boats' movement on waterways, and limit water available to non-essential businesses like car washes.

The building was celebrated for having obtained a “LEED for Homes” sustainability certification and was the first to implement the use of both stormwater and graywater to supply toilets and irrigation, according to the lawsuit.

They added that much of the Southern California farmland that relies on Colorado River water is “either fully or partially irrigated via flood irrigation, which uses much more water than drip and sprinkler irrigation.”