Black Rock Lava

Yes, it was selected for short-season performance and will finish reliably in cooler British summers when sited in a sunny, sheltered spot.

Transplant outside after the last strong frosts and when nights consistently exceed 10°C, usually late May to June in Sheffield.

Use windbreaks, staggered planting, low netting and staking; keep plants lower with topping and LST to reduce leverage on stems.

Start with a balanced vegetative feed, switch to higher phosphorus and potassium during flowering, and reduce nitrogen after week two of bloom.

Watch for aphids, spider mites and mildew; maintain airflow, check undersides of leaves and treat promptly with organic controls.

Promote airflow, remove dense fan leaves, and avoid overhead watering late in the day to reduce mould in damp coastal conditions.

Harvest when trichomes show a mix of cloudy and amber for balanced effects, usually late September in short seasons.

Yes, a greenhouse offers shelter from wind and rain while extending the usable season, but ventilation and shading are crucial in hot spells.

Provide robust staking or trellis early; main colas can become heavy and need support through flower development.

Dry slowly at 18–20°C with 50–60% humidity for 7–14 days, then cure in sealed jars, burping daily for two weeks and less often thereafter.