Royal Og

Yes, Royal Og adapts well to a greenhouse and is a solid choice for UK greenhouse cannabis growing when you control humidity and ensure good airflow.

Aim for 40–50% relative humidity in late flowering to reduce mould risk; lower is better during the final two weeks before harvest.

Use a balanced veg feed followed by higher phosphorus and potassium in flower; reduce nitrogen late in bloom to encourage resin and bud density.

Prioritise ventilation, use a dehumidifier where possible, space plants to improve air movement and remove any affected foliage immediately.

Harvest when trichomes are mostly cloudy with some ambers for a more sedative effect; check multiple colas to time for a uniform result.

Yes, SCROG and LST work well to flatten the canopy and improve light penetration, which boosts yields and reduces internal humidity pockets.

It benefits from steady feeding but is not extremely hungry; avoid over-fertilising as this can increase leaf mass and trap humidity.

Spider mites and aphids can be an issue; inspect regularly and use integrated pest management with predators or botanical controls where needed.

Yes, outdoors in Powys it can perform well if sited in a sheltered, sunny spot and brought into a greenhouse if late-season wet weather threatens.

Flush for around 7–14 days depending on medium and nutrients used to help smooth the smoke and reduce residual salts.