"Also known as Ghost Pepper, Naga Morich. Legendary variety, one of the world’s hottest peppers, with readings in excess of 1,000,000 Scoville units! Bhut Jolokia starts out slow but eventually makes tall plants, exceeding 4 feet in favored locations. The thin-walled, wrinkled, pointed fruit reaches 2-3 inches in length, ripening mostly to red."
This plant won't reach 4 feet in our area, unless you want to treat it as a perennial in a container and bring it inside every fall.