Edible plant · fruiting

Anaheim chile

Capsicum annuum

Also known asNew Mexico chile · Hatch chile (specifically grown in Hatch, NM) · California chile (dried form) · Long green chile

beginner warm-season frost-sensitive hydroponic-ready aquaponic-ready continuous
Days to harvest
70–90
Yield / plant
2kg
Spacing
50 cm
Daily light
22–30DLI

Environment

The bounded range this crop tolerates. Strict on light; outside the DLI band, yields drop sharply.

Temperature
5152535
1832°C
pH
45.578.5
5.8–6.5
EC (hydro)
01234
1.8–2.6 mS/cm
Daily light
5152535
22–30 mol/m²/d
!Light strict; fails outside DLI band
Continuous harvest

Climate and zones

USDA zones
5–12 (winter low around -29°C)
Frost
frost sensitive (dies at first frost)
Season
warm (summer, frost-sensitive)
·Outdoor year-round (in zone)
Outdoor in growing season
Unheated greenhouse / hoop
Heated greenhouse
Indoor (heated home)
Indoor hydroponics + grow lights

Growing systems

Root mass: moderate.

·Deep water culture (rafts)
·NFT channels
·Vertical / aeroponic tower
Drip / Dutch buckets
Media bed (ebb and flow)
·Wicking bed
Soil bed

Growing media

MediumpH effectRetentionBacterial surface
Expanded clay pebbles (LECA) neutral / inert low high
Coco coir (Coconut coir) slightly acidic high moderate
Perlite (Expanded volcanic glass) neutral / inert very low low
Rockwool (Mineral wool) alkaline until pre-soaked very high low
Soil-based mix (Potting soil) varies high high

Nutrient demand by stage

NPK ratios are relative weights. EC targets shift through the plant's life.

StageNPKEC (mS/cm)
seedling2111.2
vegetative3121.8
flowering1232.2
fruiting1232.4

Companion-growing notes

  • Heavy uptake of potassium, calcium. Co-grown crops with the same demand will end up deficient even at "correct" EC.

Aquaponics suitability

Compatible

Fish waste provides enough nitrogen for healthy growth. Supplemental potassium, calcium, and iron may still be needed depending on fish stocking density.

Care notes

A productive hydroponic pepper for growers who want big, mild chiles to roast and stuff. Hold EC around 1.8-2.6 mS/cm and pH near 5.8-6.5. Run temperatures about 2129°C with full sun or strong light, on the order of 22-30 mol/m2/day. Plants are medium, roughly 6080 cm, and crop well in Dutch bucket, deep water culture, or drip. The fruit is large and heavy, so stake or cage the stems as the load builds. Pick green for fresh use around 70 to 80 days from transplant, or let pods ripen red for drying nearer 90 to 100 days. Keep calcium steady against blossom end rot, with potassium and magnesium important through fruiting. A well-fed plant carries 15 to 25 fruits in a season. For the New Mexican fire-roasted style, pick full-sized dark-green pods and char the skin on a grill or under a broiler; the thick walls take roasting well. Roasted, peeled pods freeze nicely in flat bags for year-round green chile.

Notable varieties

CultivarTypeOriginDaysNotes
Anaheim open pollinated 75 The original California variety, mild (500-1,000 Scoville). What most supermarket 'Anaheim peppers' are. Productive, easy.
NuMex Big Jim open pollinated New Mexico State University (Roy Nakayama with Jim Lytle), 1975 80 Holds the Guinness record for longest chile pepper at 13.5 in (about 34 cm). A hybrid of New Mexican chiles with a Peruvian pepper; rated mild to moderate (around 2,500-3,000 Scoville). A classic chile relleno pepper, named for Jim Lytle.
NuMex Sandia open pollinated New Mexico State University, 1956 80 Hotter than Anaheim (5,000-8,000 Scoville), thinner walls, the variety most Hatch Valley growers plant. Skin slips easily after roasting.
NuMex Joe E. Parker open pollinated New Mexico State University, 1990 80 Disease-improved Anaheim type, moderate heat (1,500-3,000), the most-grown New Mexico chile for home and small commercial use.

Further reading