Slapz

Start with a balanced vegetative feed and switch to a phosphorus-weighted bloom feed once flowering begins, reducing nitrogen gradually during weeks 3–4 of bloom.

Increase ventilation, remove lower shade to improve airflow, maintain RH below 55% during late flowering and inspect buds regularly for early signs of botrytis.

It can, but in the UK outdoor success depends on a warm season and protection from prolonged rain; a greenhouse or polytunnel gives more predictable results.

Many growers begin a flush of plain water one to two weeks before harvest to improve burn and flavour, but monitor trichomes rather than calendar dates alone.

Aphids, spider mites and thrips are common; regular plant checks and biological controls like predatory mites or neem as a last resort help keep infestations down.

Yes; topping, LST and SCROG increase bud sites and even ripening, which is especially useful in a greenhouse where vertical space can be managed.

Expect roughly 12–14 weeks from seed to harvest indoor, with outdoor or greenhouse timing dependent on start date and local weather patterns.

Dry slowly at 50–60% RH and 16–20°C until stems snap; cure in airtight jars with short daily burps for the first two weeks to develop aroma and smoothness.

Look for yellowing between veins for magnesium deficiency and general yellowing for nitrogen shortage; correct with targeted feeds and check pH to ensure uptake.

Look for community forums and local grower groups that focus on UK greenhouse cannabis growing for region-specific calendars, pest advice and greenhouse ventilation solutions.