
- Balanced blueberry hybrid for reliable indoor results
Blue Shamu
Blue Shamu is a compact, resinous hybrid with a sweet blueberry profile and reliable indoor performance.
- Sweet blueberry aroma with citrus lift
- Compact habit ideal for tents and SCROG
- Reliable indoors, manageable outdoors in sheltered sites
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18-22% |
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0.5-1% |
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Blueberry x Shaman |
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Hybrid |
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Intermediate |
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8-10 weeks |
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Medium (80-150 cm indoor; taller outdoors) |
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Medium to high |
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Blueberry, Citrus, Earthy |
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Feminised |
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Temperate Southern England Climate |
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Relaxed, Focused, Uplifted |
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Indoor and outdoor |
About Blue Shamu
Blue Shamu is a compact, resinous hybrid bred for indoor growers and sheltered outdoor sites. It combines sweet blueberry and citrus notes with a balanced, calming high and finishes in eight to ten weeks under good conditions.
Blue Shamu is a balanced hybrid that leans slightly towards indica. It presents compact growth and dense resinous buds.
THC typically ranges between 18 and 22 percent under good conditions. Stronger phenotypes can reach the mid-twenties with optimal feeding and light.
CBD content is low, usually under one percent. The cultivar is bred for psychoactive potency rather than CBD therapy.
Blue Shamu originates from a cross of Blueberry with a Shaman-type variety to combine aroma and vigour. Breeders selected phenotypes for resin production and indoor suitability.
Seeds are generally available as feminised to ensure female-only crops. Some breeders may offer regular or auto-flowering lines to suit different growers.
Under a temperate southern England climate this variety is best suited to growers with some experience. It tolerates mild variation but benefits from steady humidity and airflow control.
Flowering usually completes within eight to ten weeks indoors. Outdoor growers should expect a similar schedule, finishing before the heaviest autumn weather.
Indoor yields are medium to high when trained and fed consistently. Outdoors plants can deliver larger colas in a protected site during a good season.
Plants stay relatively compact in controlled environments but will stretch outdoors if given space. Expect finished heights around 80–150 cm indoors with the potential to exceed that outdoors.
Indoors Blue Shamu responds well to SCROG and LST and fits most tents cleanly. Outdoors in Devon it benefits from sheltered, south-facing spots and typically finishes before persistent autumn rain.
Growing Blue Shamu in Devon requires attention to the temperate southern England climate and late-season rain. Good ventilation and timely harvesting reduce the risk of mould in that environment.
The high produces a calm body relaxation with a clear-headed uplift. Users report it is suitable for social use or focused tasks without excessive sedation for many.
The flavour profile is dominated by sweet blueberry with bright citrus top notes and an earthy background. The smoke is smooth and leaves a sweet finish.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Expect eight to ten weeks of flowering indoors and completion outdoors before the first heavy autumn rains.
With training and proper feeding expect medium to high yields per square metre under controlled conditions.
It is better suited to intermediate growers due to its sensitivity to humidity and nutrient swings.
In southern England aim to harvest in late September to early October depending on the season and local microclimate.
Dry slowly at 18–21°C and 45–55% relative humidity, then cure jars for several weeks to develop flavour and smoothness.
Moderate feeding with an emphasis on phosphorus and potassium during flowering produces better bud density without excessive stretch.
Maintain airflow, lower humidity at night and consider early harvesting or protective covers to reduce exposure to late rain.
Yes, controlled climate cannabis growing makes managing humidity and temperature straightforward and will significantly reduce mould risk while improving resin production.
Aroma is noticeable but not overpowering indoors; odour control is advisable during flowering and drying.
Feminised seeds simplify crop planning for personal grows and reduce the chance of male plants, making them a common choice.
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