Cape gooseberry
Physalis peruviana
Also known asPichuberry · Inca berry · Golden berry · Aguaymanto · Uchuva · Poha berry (Hawaii)
Environment
The bounded range this crop tolerates. Strict on light; outside the DLI band, yields drop sharply.
Climate and zones
- USDA zones
- 8–11 (winter low around -12°C)
- Frost
- frost sensitive (dies at first frost)
- Season
- warm (summer, frost-sensitive)
Growing systems
Root mass: heavy. Thin-channel systems can't hold this crop.
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 |
| fruiting | 1 | 2 | 3 | 2.2 |
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 productive and relatively easy hydroponic crop. The plant is a sprawling, semi-woody perennial (grown as an annual in temperate climates) reaching 1–1.5 m tall. Dutch bucket, large DWC, or media bed systems with staking or caging for support. EC 1.5-2.5 mS/cm. pH 5.5-6.5. Temperature: 15–28°C (tolerates a wider range than tomatoes; night temperatures below 15°C improve fruit set). Moderate to high light (DLI 16-25 mol/m2/day). Self-pollinating; gentle shaking of the plants improves fruit set indoors. From transplant to first harvest: 70-90 days. The plant produces fruit continuously once it starts, with each berry maturing inside its husk over 2-3 weeks. Harvest when the husk turns papery and tan and the berry inside is golden. Each plant produces 100-200+ berries over a season. The husked berries store well at room temperature, which simplifies post-harvest handling. Pest and disease pressure is low; cape gooseberry is one of the more trouble-free nightshade crops. The fruit commands premium prices ($15-30/kg fresh) due to limited availability and the gourmet market positioning.