One of the fellows finally got documentation from the Canadian authorities indicatng that an import permit is NOT required for plants or cuttings, despite other information to the contrary, obtained from their websites, and from talking to them in person. They do need to have a Phytosanitary certificate, and if they are plants, they need to come from a "Certified Snail Free Nursery", and that nursery needs to be registered by you local ag people with the Canadian authorities and be placed on their approved nursery list. In addition, FedEx will not ship plant material to Canada, but UPS will, with a special account. It is not fun.
Been there, done that.