Early Jalapeño

Early Jalapeño is a United States Capsicum annuum cultivar developed by Petoseed as Jalapeño M-10. It was already in advanced trial by 1976 at the Petoseed Research Center in Woodland, California, where it was described as a small compact plant with concentrated fruit set suited to mechanical harvest, and it was formally listed in North American cultivar records in 1977. Its identity is built around earliness, compact growth, and dependable production under cooler conditions than many other jalapeño cultivars, which is why it became widely recommended for short-season gardens and northern growing regions.

Plants are stocky, sturdy, and compact, usually about 61.0 cm tall, with green foliage and a bushy habit that holds up well under a heavy fruit load. Grower-facing descriptions repeatedly present it as an early-bearing, high-yielding plant that sets well in cooler weather and works well in containers as well as open beds. The fruit is short, blunt, thick-walled, and juicy, usually about 5.0 to 7.5 cm long and 25 mm wide. Pods begin dark to medium green and mature red, with the green stage commonly preferred for harvest.

Its culinary identity is strongly tied to fresh use, pickling, salsa, sauces, and Mexican-style cooking. Seed and plant descriptions consistently describe it as a practical all-purpose jalapeño for home gardens and small-scale production, with a flavour profile that works well both green and fully red. The variety is also regularly noted for maturing about a week earlier than standard jalapeño types, which is one of the main reasons it remained popular in cooler regions.

A major factual conflict appears in published heat figures. Mainstream seed listings usually place Early Jalapeño in the medium-hot jalapeño range, commonly around 2500 to 15000 SHU, while New Mexico State literature cites 48000 SHU on a dry-weight basis. Across those references, the core identity remains the same: a compact, early, productive jalapeño cultivar with short thick-walled fruit that ripens from green to red.