Tropical Nerds

Use 18 hours on and 6 hours off for vegetative growth, then switch to 12/12 for flowering to trigger bud development. Maintain consistent dark periods during flowering to avoid stress.

Aim for a canopy PPFD of around 500–700 µmol/m²/s during peak flowering under LED fixtures. Adjust distance and light output to avoid bleaching while maximising trichome production.

Feed a balanced grow formula in veg, then switch to a flowering mix with higher phosphorus and potassium. Reduce nitrogen in late flowering to enhance bud density and terpene expression.

Keep relative humidity around 40–60% in veg and 40–50% in flower, with steady air exchange. Good airflow prevents mould in the typically damp UK conditions.

Begin topping and low-stress training early in vegetative stage to shape the canopy. Maintain even canopy height to optimise light distribution from LEDs.

Watch for powdery mildew and botrytis in humid conditions and spider mites under high heat and low humidity. Regular inspections and preventative cleaning reduce risks.

Many growers flush for 7–14 days before harvest to clear excess nutrients and improve smoke quality. Monitor trichomes and plant appearance rather than relying solely on a fixed flush period.

Yes, with indoor LED setups you can run continuous cycles and control every variable for consistent harvests. Schedules and room hygiene are key to avoiding pest build-up.

Use multiple fixtures or a wide-panel LED to spread light evenly and avoid hotspots. Keep panels at manufacturer-recommended distances and raise them as plants stretch.

Match light spectrum and intensity to growth stages, keep a consistent photoperiod, and manage temperature and humidity within tight ranges. Use LED panels with full spectrum output and aim for even canopy PPFD for the best trichome and terpene development.