How Much Light Does High light demand Need? PPFD & DLI
High light demanding plant with structured cycle and intensive feeding.
- Peak PPFD: 700–1100 µmol/m²/s
- Peak DLI: 30–48 mol/m²/d
- Air temperature: 22–28 °C
- Relative humidity: 45–60 %
- 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 | 150–300 µmol/m²/s | 10–19 mol/m²/d | 18 h | 5.8–6.2 | 0.4–0.8 |
| Vegetative | 21 | 400–650 µmol/m²/s | 26–42 mol/m²/d | 18 h | 5.8–6.3 | 1.2–1.8 |
| Flowering | 50 | 700–1100 µmol/m²/s | 30–48 mol/m²/d | 12 h | 6–6.5 | 1.8–2.8 |
Watering
Wet/dry cycles boost root oxygenation. Defoliation improves light penetration.