Roses for North America are largely grown in Colombia, Latin America's largest flower exporter. Some farms are certified as being environmentally sound and having good labour practices. Most are not. (Fernando Vergara/Associated Press)

We love to "say it with flowers," as the slogan goes from florists around the world. In fact, there's a veritable cacophony of bouquets changing hands out there. Canadians, Americans, Europeans and others are giving each other roses, carnations and chrysanthemums — the big three of cut flowers — like never before... 

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