Houseplants are defined as plants commonly known and recognized as such, which are grown or intended to be grown indoors. These do not include bonsai plants. If you are importing houseplants from the continental United States as part of your baggage or household effects, you do not need phytosanitary certificates or import permits. For all other plants from the United States, you may require a phytosanitary certificate from the United States Department of Agriculture and an import permit from the CFIA.