In this publicity photo provided by Cool Springs Press, rows of vegetables 

In this publicity photo provided by Cool Springs Press, rows of vegetables planted in straw bales line the garden of Minnesota author, Joel Karsten. He is the leading evangelist of a straw-bale gardening movement that has become one of this summer's hottest gardening trends. (AP Photo/Cool Springs Press, Tracy Walsh/Poser Design)
Associated Press
In this publicity photo provided by Cool Springs Press, rows of vegetables planted in straw bales line the garden of Minnesota author, Joel Karsten. He is the leading evangelist of a straw-bale gardening movement that has become one of this summer's hottest gardening trends. (AP Photo/Cool Springs Press, Tracy Walsh/Poser Design)
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