Blueberry Slushie

Maintain 18/6 during veg and switch to 12/12 for flowering; ensure stable darkness periods to prevent hermaphroditism.

Keep humidity around 40-50% in flowering and 50-70% in veg; monitor for mould and increase airflow where necessary.

It performs well outdoors in Cornwall if planted in a sheltered, well-draining spot and given a season long enough to finish; protect buds from prolonged rain to avoid rot.

Raise phosphorus and potassium in mid to late flowering while reducing nitrogen; use a balanced base feed supplemented with bloom boosters sparingly.

Spider mites, aphids and thrips are typical threats; inspect regularly and use integrated pest management and beneficial insects where possible.

Harvest when most trichomes are cloudy with some amber for a balanced effect; check multiple buds across the canopy for consistency.

Dry for 7-14 days at 18-21°C with 50% humidity, then cure in jars for at least 2-4 weeks to improve flavour and smoothness.

Yes, a greenhouse in Cornwall offers a good environment but ensure ventilation, dehumidifiers and disease prevention measures are in place.

Use low-stress training or topping to flatten the canopy and improve light penetration for higher yields and even bud development.

Keep buds spaced, prune for airflow, control humidity and harvest on drier days; consider organic fungicides as a last resort.