Tom Harrington of Marketplace.

That old song Green, Green Grass of Home didn't say anything about aggressive lawn-care companies that just won't take no for an answer.

But as shown in this week's edition of Marketplace, which airs Fridays on CBC, there is at least one large lawn-care company in Canada that will stop at virtually nothing to get your business, no matter how unwilling a client you are.

As we inch toward spring, Canadians have become accustomed to being visited door-to-door by various lawn-care firms, or getting phone calls from telemarketers, or at least being buried by flyers and pamphlets. You virtually can set your watch by their arrival every year.

But using hidden-camera footage, taped phone conversations and an interview with an insider who worked for this particular lawn-care company, Marketplace's Tom Harrington examines some of the alarming tactics being utilized -- vague arrangements of "continuous service," illegal verbal contracts, collection agencies, trashed credit ratings -- to "encourage" you to just throw up your hands and pay.

It seems like this is one company that could use some "Lawn Order." All right, bad pun, but you get the idea.