Hey Mike,
You sure can! Place the Country field on the form and change the Field Type on the right to hidden. Then, add another field but select Rich Text. Fill in your instructions and save. Then, when you select the Rich Text, on the right, you will see Visibility Rules disabled. Click on the "disabled". There, you can say show when Country is CA, Canada, etc. Approve the form, add it to your landing page, and test! It should work for ya.