Shishito
Capsicum annuum
Also known asShishitōgarashi · Lion's head pepper (literal Japanese translation) · Japanese green pepper
Environment
The bounded range this crop tolerates. Strict on light; outside the DLI band, yields drop sharply.
Climate and zones
- USDA zones
- 4–12 (winter low around -34°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 |
|---|---|---|---|
| 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.
| 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, 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 compact, prolific pepper for hydroponic systems. EC 2.0-2.8 mS/cm. pH 5.8-6.5. Temperature: 20–28°C. Moderate to high light (DLI 16-22 mol/m2/day). Plants are compact (40–60 cm) and produce heavily. From transplant to first harvest: 55-65 days. Each plant produces 30-50+ peppers. Harvest at the green stage (5–7 cm long). The blistered-shishito preparation is the standard: heat a cast iron skillet or heavy pan until smoking, add oil, add whole peppers, cook without moving until one side blisters (2-3 minutes), toss, cook until blistered on another side, transfer to a plate, sprinkle with flaky sea salt and optionally a squeeze of lemon. Eat whole, stem and all. This is one of the simplest, fastest, most satisfying preparations of any vegetable. For commercial hydroponic growers, blistered shishitos are a trending restaurant item with strong demand.