Research on the medicinal benefits of marijuana may depend on good gardening

Research on the medicinal benefits of marijuana may depend on good gardening--and some say Uncle Sam, the country's only legal grower of the cannabis plant, isn't much of a green thumb.
LYLE CRAKER HAS a number of plants on his mind. An agronomist and professor in the Department of Plant, Soil & Insect Sciences at the University of Massachusetts, Amherst, he's currently analyzing the active ingredients in black cohosh, which is used to alleviate symptoms of menopause. He is also studying goldenseal, a native American plant that shows promise as a treatment for some skin irritations, and exploring the possibility that certain Chinese medicinal plants could be cultivated in Massachusetts for research purposes.

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