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Blue Northern Lights

Feminised

Blue Northern Lights delivers berry-sweet aromas and relaxing, sedative effects suited to evening use.

Why choose Blue Northern Lights?
  • Berry-forward aroma with deep relaxation
  • Compact growth suits greenhouse benches
  • Reliable indica effects for evening use
THC 18%
CBD 0.50%
Lineage Blueberry x Northern Lights
Genotype Indica-dominant hybrid
Difficulty Moderate
Flowering 8-9 weeks
Height Short to medium (80-140 cm)
Yield Medium
Taste Berry, Pine, Earthy
Seed Type Feminised
Climate Damp Coastal
Effects Relaxing, Euphoric, Sedative
Environment Both

About Blue Northern Lights

Blue Northern Lights combines Blueberry sweetness with Northern Lights solidity to produce a compact, resinous indica-dominant hybrid. It performs well in controlled environments and responds to careful humidity management, yielding smooth smoke with berry and pine notes.

Grow Difficulty:

In a damp coastal climate this strain requires diligent ventilation and proactive mould prevention. Attention to humidity, airflow and canopy spacing will reduce rot risk.

Flowering Time:

Flowering typically completes in eight to nine weeks under controlled indoor conditions. Outdoor finishing dates depend on local seasonality and microclimate.

Yield:

Yield is moderate to good when plants receive consistent nutrients and training. Outdoor and greenhouse harvests can vary with local exposure and humidity.

Height:

Plants stay short to medium with a dominant central cola and robust lateral branches. The compact habit suits bench systems and smaller greenhouses.

Environment:

Indoors Blue Northern Lights performs well under controlled light cycles and stable humidity in Liverpool. Outdoors or in a greenhouse it benefits from sheltered sites and close monitoring in Liverpool.

Climate:

Growing Blue Northern Lights in Liverpool with damp coastal climate requires strict humidity control and good greenhouse ventilation. Extra drying time and careful airflow management are essential to avoid bud rot and preserve quality.

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
My greenhouse in Liverpool is damp, how often should I ventilate?
A
Verified answer
Run fans continuously during warm periods and use extraction to exchange air at least once every few minutes when lights are on to keep humidity down.
Common question Posted by Urbanseedbank Answered
Q
Should I use silica supplements for stronger stems?
A
Verified answer
Yes, silica can improve stem strength and stress resistance, helping plants support dense colas and resist wind in sheltered outdoor sites.
Common question Posted by Urbanseedbank Answered
Q
When is the best time to defoliate?
A
Verified answer
Remove large fan leaves that block light mid-flower, but avoid heavy pruning late in bloom to reduce mould exposure from fresh wounds.
Common question Posted by Urbanseedbank Answered
Q
How close can I place plants to greenhouse glass?
A
Verified answer
Keep a small gap for airflow and avoid direct contact with glass to prevent heat stress and cold spots that encourage condensation.
Common question Posted by Urbanseedbank Answered
Q
What drying setup works best after harvest?
A
Verified answer
Use a dark, ventilated room at 18-21°C with 45-55% humidity and gentle airflow to dry slowly and preserve terpenes.

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