The 'Fresno Chili' pepper (/ˈfrɛznoʊ/ FREZ-noh) is a medium-sized cultivar of Capsicum annuum. It should not be confused with the 'Fresno Bell' pepper. It is often confused with Jalapeño pepper but contains thinner walls, often milder heat, and less time to maturity. It is however a New Mexico chile, which is genetically distinct from the Jalapeño and it grows point up, rather than point down as with the Jalapeño. The fruit starts out bright green changing to orange and red as fully matured. A mature Fresno pepper will be conical in shape, 2 inches long, and about 1 inch in diameter at the stem. The plants do well in warm to hot temperatures and dry climates with long sunny summer days and cool nights. They are very cold-sensitive, but disease resistant reaching a height of 24 to 30 inches