There are reports of producers seeding Polish (Brassica rapa) canola varieties in Manitoba and Alberta. Keep in mind that herbicide options are limited and full spectrum weed control can be fairly costly with these varieties. Select fields carefully (e.g. not too weedy or not with a broad spectrum of hard-to-control weeds). Recognize too that yield potential of late-seeded Polish canola is lower, and therefore, inputs should be managed accordingly.
Remember that only registered Polish varieties should be grown to ensure we remain Canola Export Ready. The following link has more information to help with variety selection: