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Cluster Bomb

Feminised

Cluster Bomb is a resinous hybrid known for dense buds and a potent, relaxing high.

Why choose Cluster Bomb?
  • Dense, resinous buds built for potency.
  • Performs well with airflow and shelter in cool climates.
  • Feminised seeds simplify planning and reduce waste.
THC 18-22%
CBD 0.5-1%
Lineage Afghani x Skunk
Genotype Hybrid
Difficulty Moderate
Flowering 7-9 weeks
Height Medium (1–1.8 m outdoors)
Yield Medium-High (400-500 g/m² indoor; larger outdoors in ideal conditions)
Taste Earthy, Citrus, Skunky
Seed Type Feminised
Climate Cool, wet; rainy autumn harvest season
Effects Uplifted, Relaxed, Sleepy
Environment Indoor & Outdoor

About Cluster Bomb

Cluster Bomb is a resilient hybrid that blends Afghani and Skunk traits to produce compact, resin-heavy flowers. It suits growers willing to manage humidity and airflow, rewarding attention with pungent aroma, robust yields and reliable potency even in cooler, damper seasons.

Grow Difficulty:

Growing Cluster Bomb is moderately challenging in wet conditions and requires attentive mould prevention during a rainy autumn harvest season. Extra airflow, timely pruning and fungicide-safe care reduce risk and protect developing buds.

Flowering Time:

Flowering usually completes in seven to nine weeks under optimal indoor conditions. Outdoor plants in northern climates may finish later depending on late-season weather.

Yield:

Yield is medium to high for its footprint, often reaching around 400–500 g/m² indoors with trained canopies. Well-sheltered outdoor specimens can deliver heavier colas if kept dry.

Height:

The plant maintains a medium height with a strong central cola and sturdy lateral branches. Expect around one to 1.8 metres outdoors in good conditions.

Environment:

Indoors Cluster Bomb responds well to SCROG and SOG setups and benefits from controlled humidity in Manchester. Outdoors in Manchester place plants in a sheltered, sun-facing spot to protect buds from persistent damp.

Climate:

Growing Cluster Bomb in Manchester means planning for damp autumns and frequent light rain during the final weeks. During a rainy autumn harvest season use raised pots, quick-drying media and protective cover to keep buds healthy.

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
How did your last Manchester outdoor run go?
A
Verified answer
I kept plants under temporary shelters for heavy rain and managed to protect the main colas; yields dropped slightly but quality stayed good.
Common question Posted by Urbanseedbank Answered
Q
Any tips for trimming to avoid mould?
A
Verified answer
Remove inner foliage to open the canopy and cut late-season fan leaves that trap moisture; do it a few weeks before harvest so wounds heal.
Common question Posted by Urbanseedbank Answered
Q
What humidity did you aim for during late flower?
A
Verified answer
Around 40–50% RH; lower humidity helped prevent bud rot during Manchester's damp evenings.
Common question Posted by Urbanseedbank Answered
Q
Did you use any specific treatments for mildew?
A
Verified answer
I applied a potassium bicarbonate spray as a preventative and used a biological fungicide when conditions stayed damp for a week.
Common question Posted by Urbanseedbank Answered
Q
Would you grow Cluster Bomb again outdoors here?
A
Verified answer
Yes, but only in a sheltered spot with good airflow and a plan to cover plants during prolonged rain.

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