Trinidad Scorpion CARDI. 800,000 - 1,000,000 Scoville Units. The Trinidad Scorpion is a rare and extremely hot pepper which originates from Trinidad. The chili pods color from green to golden yellow during ripening. The pods are bigger, longer and thicker than the 'regular' Trinidad Scorpion. CARDI (Caribbean Agricultural Research and Development Institute) in Trinidad and Tobago plays a key role in the development of the Caribbean regional hot pepper industry.