Modern Marvels: In the 21st century, turf grass is the number one crop grown in the U.S. When suburbia exploded after World War II, turf became the defining characteristic of nearly every yard. First, it's off to the research greenhouse facility at The Scotts Company to learn how grass seed is bred for special characteristics. Then pay a visit to the Toro Company, a big name in lawnmowers. The Rain Bird Company and its automatic sprinkler systems is the life giver to thirsty lawns across the country, and The Davey Company specializes in moving trees in excess of one million pounds. Finally, take a trip to California Waterscapes and watch as a crew installs a waterfall and koi pond.

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Documentary, History