Pandora’S Box

Keep relative humidity below 50% during late flowering with good ventilation and dehumidification to reduce bud mould risk.

Yes, but start early or use a greenhouse as London can have a short outdoor growing season that shortens the safe harvest window.

Use a balanced vegetative nutrient then switch to a bloom formula at the onset of flowering, reducing nitrogen and increasing phosphorus and potassium.

Harvest timing depends on trichome colour; aim for mostly cloudy trichomes with some amber for a balanced effect and check multiple colas.

Maintain airflow, remove lower foliage to improve circulation, and inspect buds frequently; in greenhouse setups use vents and dehumidifiers.

Selective pruning and topping help open the canopy and improve light penetration, which boosts yield and reduces mould risk.

Watch for aphids, spider mites and thrips; use integrated pest management, sticky traps and biological controls where possible.

Soil is more forgiving for newcomers, while hydroponics can give faster growth but requires tighter nutrient control.

High humidity increases the chance of bud rot and mildew, especially late in flowering, so techniques from high humidity cannabis cultivation such as increased airflow and lower night temps are vital.

Many growers perform a short flush of plain water one to two weeks before harvest to improve flavour and smoothness.