How Much Light Does Radish Need? PPFD & DLI
Fast growing; don't let it dry out to avoid woody roots.
- Peak PPFD: 250–400 µmol/m²/s
- Peak DLI: 11–17 mol/m²/d
- Air temperature: 15–21 °C
- Relative humidity: 50–70 %
- VPD target: 0.7–1 kPa
- Do not leave the substrate dry for more than 2 days
Targets per growth stage
| Stage | From day | PPFD | DLI | Photoperiod | pH | EC |
|---|---|---|---|---|---|---|
| Seedling | 0 | 100–200 µmol/m²/s | 4–9 mol/m²/d | 12 h | 6–7 | 0.8–1.2 |
| Mature | 15 | 250–400 µmol/m²/s | 11–17 mol/m²/d | 12 h | 6–7 | 1.2–1.6 |
Watering
Fast grower; do not let dry out to prevent woody roots.