Jazz Cabbage

Use 10–20 litre pots outdoors and 7–11 litre pots indoors to give roots enough room without excess water retention.

Water moderately and allow the topsoil to dry slightly between feeds; overwatering increases mould risk, especially late in flowering.

Begin low-stress or topping in early vegetative stage to shape the canopy and improve light penetration to side shoots.

Spider mites and aphids can occur; monitor weekly and use biological controls or neem oil early to avoid infestations.

Flush with plain water for seven to ten days before harvest to reduce nutrient residues and improve smoke quality.

Dry slowly in a dark, cool room with 45–55% humidity and then cure in jars with regular burping over several weeks for best aroma and smoothness.

Use a balanced vegetative feed then switch to a bloom formula higher in phosphorus and potassium during flowering, reducing nitrogen in late bloom.

Yes, a greenhouse offers extended season benefits in Hertfordshire but you must manage ventilation and humidity to prevent mould.

It tolerates cooler temperatures but is vulnerable to prolonged wet; use shelters or early harvest if autumn rains threaten crops.

In high humidity cannabis cultivation prioritise airflow, dehumidification and plant spacing, plus pick resilient phenotypes and inspect buds frequently for signs of rot.