They are perennial in warmer parts of the country. Find your growing zone and find how hardy the brugmansias are. In colder parts of the country, you can easily dig the root ball up and keep it somewhere that won't freeze till spring. Several you tube videos show you how.
Logee's has different kinds on their website. You can order them online. They will be smaller than the one seen here, but they grow fast. They will not be these bright colors. These people are not honest. If you have little kids or dogs that like to munch plants, be aware these plants are hallucinogenic.