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Alpha Blue

Feminised

Alpha Blue is a balanced hybrid with sweet berry flavour and steady yields that suit UK growers.

Why choose Alpha Blue?
  • Sweet berry flavour
  • Stable mid-high THC
  • Greenhouse friendly
THC 18-22%
CBD 0.5-1%
Lineage Alpha OG x Blueberry
Genotype Hybrid
Difficulty Intermediate
Flowering 8-9 weeks
Height 80-160 cm
Yield 450-550 g/m² indoor; 300-500 g/plant outdoor
Taste Berry, Earthy, Citrus
Seed Type Feminised
Climate Mild Maritime, Greenhouse Recommended In Northern Regions
Effects Relaxed, Uplifted, Sleepy
Environment Indoor & Outdoor

About Alpha Blue

Alpha Blue is a balanced hybrid bred from Alpha OG x Blueberry. It gives a clear berry flavour with earthy undertones and a citrus lift. You will find it performs well indoors and in greenhouses across the UK. Keep humidity in check during flower, especially in places such as Manchester and Glasgow. Train your plants early to control height and increase bud sites. Feed with a standard veg-to-flower programme and reduce feed in the final two weeks. Expect 8–9 weeks flowering and steady yields suited to hobby growers and small-scale producers.

Grow Difficulty:

Growing Alpha Blue suits growers with some experience. It rewards attention to humidity and airflow in a British greenhouse.

Flowering Time:

Flowering runs about 8–9 weeks indoors. That timing fits the short UK outdoor season when you use a greenhouse or start early.

Yield:

Indoor yields are steady at around 450–550 g/m² under good lights. Outdoor or greenhouse plants often reach 300–500 g per plant in southern England.

Height:

Plants stay medium in height, usually 80–160 cm depending on training. That size suits UK grow rooms and typical tent setups.

Environment:

Alpha Blue does well indoors and in greenhouses in the UK. It handles damp outdoor weeks but benefits from shelter during rainy autumns.

Climate:

Best suited to a mild maritime climate with protection from heavy rain, such as Cornwall or Kent. In Scotland or the Lake District a greenhouse gives the best results.

Frequently Asked Questions

Common questions about this strain, covering growth, effects, and suitability for UK conditions.

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Choose seed quantity
Selected: 5 Seeds
£53.33 £40.00
£8.00 / seed • You save £13.33
Accepted payment methods
100% Satisfaction Guarantee • Secured Payments
Urbanseedbank Support

Questions & Answers

Customer questions and answers from the Urbanseedbank team. Submit your own question and we’ll respond after review.

5 questions Answered posts are shown first.
Common question Posted by Urbanseedbank Answered
Q
What's your indoor yield in Manchester?
A
Verified answer
I pull roughly 500 g/m² under LED with 8–9 weeks flower.
Common question Posted by Urbanseedbank Answered
Q
How do you manage humidity in Liverpool?
A
Verified answer
Keep RH at 40–50% in flower and run fans with a dehumidifier during humid spells.
Common question Posted by Urbanseedbank Answered
Q
Do you top Alpha Blue in Bristol?
A
Verified answer
Yes, I top twice and low stress train in the greenhouse for an even canopy.
Common question Posted by Urbanseedbank Answered
Q
Soil or hydro in Nottingham?
A
Verified answer
I prefer organic soil; plants finish with sweeter flavour and more robust growth.
Common question Posted by Urbanseedbank Answered
Q
When do you flip to flower in Leeds?
A
Verified answer
Vegetate for four to six weeks then switch to 12/12 for flowering.

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