Chile pequin
Capsicum annuum
Also known asPequin · Piquín · Chile pulga (Spanish for 'flea chile') · Bird pepper (regional Texas/Mexico)
Environment
The bounded range this crop tolerates. Strict on light; outside the DLI band, yields drop sharply.
Climate and zones
- USDA zones
- 8–12 (winter low around -12°C)
- Frost
- frost sensitive (dies at first frost)
- Season
- warm (summer, frost-sensitive)
Growing systems
Root mass: moderate.
Growing media
| Medium | pH effect | Retention | Bacterial surface |
|---|---|---|---|
| Coco coir (Coconut coir) | slightly acidic | high | moderate |
| Perlite (Expanded volcanic glass) | neutral / inert | very low | 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.
| Stage | N | P | K | EC (mS/cm) |
|---|---|---|---|---|
| seedling | 2 | 1 | 1 | 1.2 |
| vegetative | 3 | 1 | 2 | 1.8 |
| flowering | 1 | 2 | 3 | 2.2 |
| fruiting | 1 | 2 | 3 | 2.4 |
Companion-growing notes
- Heavy uptake of potassium. 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 compact, long-lived pepper for hydroponic growing. EC 2.0-2.8 mS/cm. pH 5.8-6.5. Temperature: 22–32°C (native to hot, semi-arid environments). High light (DLI 18-25 mol/m2/day). The plants are small enough for countertop and windowsill growing, though they produce more fruit under strong supplemental light. Germination is slow and erratic (2-6 weeks); soaking seeds in dilute gibberellic acid solution or hydrogen peroxide before planting improves germination rates. From transplant to first fruit: 80-100 days. Once established, the plants fruit continuously for years as perennials. Each plant produces hundreds of tiny peppers annually. Harvest red for the fullest flavor. The small fruits dry easily: spread on a screen or string on thread and air-dry, or dehydrate at 55°C. Crushed dried chile pequin is the traditional table condiment in many Tex-Mex restaurants. For growers in northern climates, a chile pequin plant in a sunny window or under a grow light provides a steady supply of an otherwise difficult-to-source regional ingredient.