CBD oil does have medicinal uses and can be very good for our pets, but it can be very expensive and most of what is available in the United States is made from industrial hemp, not marijuana.
I didn't click on the link about the marijuana seeds. If I wanted to buy marijuana seeds, I would ask my doctor or my budtender where to buy them.
Marijuana seeds have nothing to do with dogs.
Laurel: born 9/1/18, 6 lbs, with me since Veteran's Day
Chocolate (foster/adopt): born 10/4/18, 11 lbs, with us since Memorial Day