Jalepenos typically register 3500 to 8000 scovilles; pequins routinely register 100,000 to 140,000 scovilles, and can grow as hot as 250,000--the same amout of heat as habaneros.) Collecting seeds is a hot time. These native peppers are perennial in much of their growing range, but will do just as well grown as annuals. Even if a frost knocks them back to the ground, they will often re-emerge as soon as the ground warms up the next spring.