Anaheim Pepper

Anaheim peppers are one of the most adaptable and forgiving chile varieties to grow, thriving particularly well in hot, arid climates. Start seeds indoors 8 weeks before the last frost date, sowing one-quarter inch deep at 75°F to 85°F. Transplant outdoors when nighttime temperatures stay above 55°F and space plants 18 to 24 inches apart in rows 30 inches apart.

These peppers perform best in full sun with 8 or more hours of direct light and warm soil. Unlike many peppers, Anaheims tolerate the intense heat and dry conditions of the American Southwest exceptionally well. Water deeply but infrequently, allowing soil to partially dry between waterings. Drip irrigation is ideal for maintaining consistent moisture without wetting the foliage. Mulch with straw to conserve water and moderate soil temperature.

Anaheim plants grow 24 to 30 inches tall and produce elongated fruits 6 to 10 inches long. The plants are generally sturdy enough to support their fruit without staking, but heavy-bearing plants may benefit from a small cage. Apply a balanced fertilizer at transplanting and a phosphorus-heavy feed once flowers appear. The mild heat of 500 to 2,500 Scoville units makes them extremely versatile for cooking.

The Anaheim pepper traces its lineage to the New Mexico chile pepper (Capsicum annuum), which has been cultivated by Pueblo peoples in the Rio Grande Valley for over 400 years. Spanish colonists brought chile seeds from Mexico to New Mexico in the late 1500s, and generations of selection by both Indigenous and Hispanic farmers produced the long, mild, thick-walled pepper ideally suited to roasting and drying in the arid Southwestern climate. These New Mexican chiles became the foundation of the region's distinctive cuisine.

In 1894, a farmer named Emilio Ortega brought New Mexican chile seeds to Anaheim, California, where he established a cannery to produce fire-roasted green chiles for a broader market. The milder peppers grown in Anaheim's cooler coastal climate became known as Anaheim peppers, and Ortega's canned chiles introduced Southwestern flavors to the rest of the United States. The Ortega brand remains one of the most recognized names in canned green chiles today. Despite the California name, the heart of Anaheim-type pepper production has always remained in New Mexico, particularly the Hatch Valley.

New Mexico State University's Chile Pepper Institute has been instrumental in developing improved Anaheim-type varieties since the 1900s. Dr. Fabian Garcia released the first standardized variety, New Mexico No. 9, in 1913, and subsequent breeders developed iconic selections like NuMex Big Jim (which holds the Guinness World Record for largest chile pepper at 34 cm), NuMex Joe E. Parker, and NuMex Heritage series. Today, Anaheim-type peppers are grown commercially across the American Southwest, Mexico, and increasingly in home gardens worldwide. The annual green chile harvest and roasting season remains a defining cultural event in New Mexico, where the pepper is not merely an ingredient but a way of life.

Anaheim peppers prefer well-drained, sandy loam soil with a pH of 6.0 to 7.0, reflecting their Southwestern desert origins. They tolerate slightly alkaline conditions better than most peppers. Amend heavy soils with sand and compost to improve drainage. Apply a complete fertilizer at transplanting and side-dress with compost when first fruits set. Avoid excessive nitrogen which promotes foliage over fruit. In arid climates, apply a thin layer of sulfur to lower soil pH if it exceeds 7.5.

Harvest Anaheim peppers when they reach 6 to 10 inches long and are firm and dark green. For hotter, sweeter peppers, leave them on the plant to ripen to red. The thin walls blister and peel easily when roasted under a broiler or over an open flame. Use a sharp knife or scissors to cut peppers from the plant, leaving a short stem. Plants produce continuously from midsummer through early fall if harvested regularly. Each plant typically yields 20 to 30 peppers per season.

Roasting and freezing is the preferred preservation method for Anaheim peppers. Char the skins under a broiler, steam in a sealed bag for 10 minutes, then peel and freeze flat in bags. Frozen roasted Anaheims keep for a year. For dried California chiles, leave peppers on the plant until fully red, then hang in ristras or dehydrate at 135°F until brittle. Fresh Anaheims keep for 2 to 3 weeks refrigerated due to their thick flesh. Canning roasted peppers in a pressure canner also works well.

Anaheim peppers are the classic roasting chile of the American Southwest. Fire-roasted and peeled, they star in green chile sauce, enchiladas, and chiles rellenos. Chopped Anaheims add mild heat to burgers, omelets, and cornbread. When dried as California chiles, they are rehydrated and blended into smooth red enchilada sauce. Their mild, versatile flavor makes them an ideal everyday cooking pepper that adds depth without overpowering.