
- Sweet berry flavour with a calming finish
Blueberry Jam
Blueberry Jam is an indica-dominant hybrid known for sweet blueberry flavours and calming effects. Suited to urban growers in London who manage humidity carefully.
- Rich blueberry aroma
- Compact, bushy growth
- Reliable autumn finishes in London
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18-22% |
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0.5-1% |
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Blueberry x Afghani |
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Indica-dominant hybrid |
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Intermediate |
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8-9 weeks |
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80-150 cm |
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Medium-high |
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Blueberry, Sweet, Jammy |
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Feminised |
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Mild Southern Growing Climate |
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Relaxed, Happy, Sleepy |
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Indoor and outdoor |
About Blueberry Jam
Blueberry Jam is an indica-dominant hybrid that brings pronounced blueberry and jammy notes alongside relaxing body effects. It flowers in eight to nine weeks and offers medium to high yields when grown with attention to airflow and nutrient balance. In London its compact stature and resilience make it a strong choice for gardeners working in mild southern growing climate conditions. Growers should focus on humidity control, good ventilation and light training to maximise bud quality and terpene retention.
Blueberry Jam is an indica-dominant hybrid with noticeable berry characteristics. It combines calming body effects with a gentle cerebral lift.
THC levels typically range from 18% to 22% in tested samples. That potency gives a reliably strong effect without being overwhelmingly heavy for most users.
CBD is low, generally under 1% in most phenotypes. The low CBD means therapeutic effects are mostly driven by THC and terpenes.
Blueberry Jam stems from Blueberry x Afghani genetics. The cross brings fruity terpenes and sturdy growth characteristics.
Seeds are usually available as Feminised photoperiod varieties. Autos are less common but occasional breeders offer autoflowering versions.
Grow difficulty is intermediate and manageable for those with basic experience. It performs well in a mild southern growing climate and benefits from steady humidity control.
Flowering typically completes in eight to nine weeks. Outdoor growers in London can expect harvest in early autumn.
Yields are medium to high under attentive care. Expect denser buds when given good nutrients and adequate light.
Plants stay compact to medium, with bushy internodal spacing. Expect heights around 80 cm to 150 cm depending on training.
Indoors, Blueberry Jam responds well to SCROG and topping to control its bushy growth. Outdoors in London it finishes reliably and benefits from sheltered, sunny spots.
In London, the mild southern growing climate allows Blueberry Jam to finish outdoors with lower risk of rot. Provide good airflow and moderate humidity control to make the most of the season.
Users report a calming body high that eases tension. A mild cerebral uplift brings gentle euphoria and relaxed focus.
The flavour is dominated by ripe blueberry and sweet jam notes. Underlying earthy and floral tones round out the smoke.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Aim for 45–55% relative humidity during flowering and a little higher during veg; keep levels lower late in flower to reduce mould risk.
Ensure good airflow, space plants for ventilation, prune lower foliage, and consider a dehumidifier or timed ventilation in enclosed spaces.
Yes, in London it tolerates mild temperatures but needs sheltered, sunny spots and vigilant mould prevention during wet periods.
Switch to a bloom formula higher in phosphorus and potassium after the stretch, and reduce nitrogen to encourage bud development.
Yes; low-stress training and topping control its bushy growth and improve light penetration for more uniform bud development.
Harvest when trichomes show a mix of cloudy and amber for a balanced effect and peak jammy flavour.
Cure slowly in a cool, dark place with periodic burping to preserve terpenes and enhance the jammy aroma.
Watch leaf colour and tip burn patterns; yellowing between veins often signals magnesium or iron issues, while overall yellowing suggests nitrogen deficiency.
Its compact stature makes it well suited to small indoor tents and discreet outdoor spaces like balconies with good airflow.
In humid climate cannabis growing, prioritise airflow, timed dehumidification if possible, and keep late-season foliage thinned to lower mould pressure.
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