How Much Light Does Eggplant Need? PPFD & DLI
Vigorous growth requiring strong lighting and rich nutrition.
- Peak PPFD: 600–900 µmol/m²/s
- Peak DLI: 35–52 mol/m²/d
- Air temperature: 24–30 °C
- Relative humidity: 55–70 %
- VPD target: 0.8–1.2 kPa
- Do not leave the substrate dry for more than 4 days
Targets per growth stage
| Stage | From day | PPFD | DLI | Photoperiod | pH | EC |
|---|---|---|---|---|---|---|
| Seedling | 0 | 265–345 µmol/m²/s | 15–20 mol/m²/d | 16 h | 5.8–6.4 | 1–1.2 |
| Vegetative | 21 | 400–600 µmol/m²/s | 23–35 mol/m²/d | 16 h | 5.8–6.4 | 2–2.5 |
| Flowering/fruiting | 60 | 600–900 µmol/m²/s | 35–52 mol/m²/d | 16 h | 5.8–6.4 | 2.5–3.5 |
Watering
Benefits from deep watering, encouraging root development.
Sources
- Wuetcher, L.T. & Owen, W.G. (2025). Managing DLI to Improve Vegetable Transplant Quality. e-GRO Alert 10(1), The Ohio State University — Supports: seedling light
Values not covered by a source above are common growing practice, not taken from a primary source.