Sour Punch

Sow indoors in late March to April and harden off seedlings to give plants the longest possible season before autumn.

Improve airflow, prune inner foliage and use a rainproof cover or greenhouse to reduce leaf wetness during late summer.

Yes; a greenhouse speeds ripening and reduces exposure to rain, which is helpful in Northumberland's short season.

Feed moderately with a balanced NPK during veg and switch to phosphorus-rich bloom feed once flowering starts; avoid overfeeding which can stress plants.

Flush one to two weeks before harvest if you use synthetic nutrients; it helps smooth the smoke and finalise terpene expression.

Aphids and spider mites appear in sheltered spots; use soap sprays, predatory insects or careful neem oil treatments as needed.

Both topping and LST work well to create an even canopy and limit vertical stretch during early flowering.

Critical — maintain good ventilation and keep humidity lower in late flowering to avoid bud rot and quality loss.

Dry in a cool, well-ventilated room with dehumidification if possible, then cure slowly in jars to preserve aroma and prevent mould.

Yes, Sour Punch is a useful test case for high humidity cannabis cultivation strategies because it highlights the need for airflow, dehumidification and sheltered finishing.