The jalapeno is a pod type of Capsiicum annuum, it is a medium-sized chili pepper. A mature jalapeno fruit is 5–10 cm long and hangs down with a round, firm, smooth flesh 25–38 mm wide. It is of mild to medium pungency, having a range of 2,500 to 8,000 Scoville units, depending on cultivar. Commonly picked and consumed while still green, it is occasionally allowed to fully ripen and turn red, orange or yellow. It is wider and milder than the similar Serrano pepper (in offer). The growing period is 70–80 days. When mature, the plant stands 70–90 cm tall. Typically, a plant produces 25 to 35 pods.
Jalapenos thrive in a number of soil types and temperatures, though they prefer warmer climates, provided they have adequate water. The optimum temperature for seed germination is 29 °C Jalapenos need at least 6 to 8 hours of sunlight per day. Once picked, individual peppers may turn to red of their own accord. The peppers can be eaten green or red. Though usually grown as an annual they are perennial and if protected from frost can produce during multiple years, as with all Capsicum annuum.