Courthouse lawn bogarted

Man, some people just can't help but ruin a good time for everybody else.

After reporters pointed out that wild marijuana, commonly called ditch weed, was growing on the lawn at the federal courthouse in Sioux Falls, the greenery was eliminated.

City officials and a developer said seeds in dirt brought in for construction must have sprouted.

So, where did the dirt come from? And how come nobody at the courthouse noticed the stuff was growing there? Or...did they?