Where Are the Farmers at the Farmers' Market?

When is a farmers' market not a farmers' market? When it's a "producers' market," which becomes more common in the winter when locally grown products are few but produced items like canned foods or soap are plentiful. The farmers' aren't too happy about it, either, but market organizers say "If you only have one or two things down there [at winter markets], people are not going to come.' [WaPo]