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Chem 4

Feminised

Chem 4 is a diesel-forward hybrid that balances cerebral lift with mellow relaxation.

Why choose Chem 4?
  • Pungent diesel aroma and bright citrus notes
  • Reliable outdoor performer in mild seasons
  • Great for focus, creativity and evening relaxation
THC 18-24%
CBD <1%
Lineage Chemdawg x Northern Lights
Genotype Hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Medium
Yield Medium to high
Taste Diesel, Citrus, Earthy
Seed Type Feminised
Climate mild southern growing climate
Effects Uplifting, Focused, Relaxed
Environment Indoor and Outdoor

About Chem 4

Chem 4 is a reliable hybrid prized for its pungent diesel aroma and clear-headed effects. It performs well for growers who can manage humidity and provide steady nutrients. In the UK its adaptability makes it a practical choice for both controlled indoor rooms and sheltered outdoor spots. With an eight to ten-week flowering window it suits growers seeking medium to high yields without extreme stretch.

Grow Difficulty:

Growing Chem 4 requires intermediate skills, particularly in managing humidity and feeding. In a mild southern growing climate it benefits from stable temperatures and careful ventilation to prevent bud rot.

Flowering Time:

Flowering usually completes in eight to ten weeks under optimal conditions. Some phenotypes may extend slightly beyond ten weeks if left for heavier resin development.

Yield:

Yields are medium to high with proper training and nutrient management. Outdoor plants in a mild season can produce larger colas late in the season.

Height:

Plants reach a medium height with a well-branched structure suited to topping and LST. They do not typically stretch excessively during flowering, making them manageable in modest spaces.

Environment:

Indoors, Chem 4 performs well under controlled conditions in Liverpool, responding positively to SCROG and SOG methods. Outdoors in Liverpool it prefers a sunny, sheltered spot where airflow reduces moisture around the buds.

Climate:

Growing Chem 4 in Liverpool benefits from the area's relatively mild southern growing climate, which reduces frost risk into autumn. However, controlled humidity and shelter from prolonged rain are essential to avoid mould.

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.

4 questions Answered posts are shown first.
Common question Posted by Urbanseedbank Answered
Q
My buds look dense but damp, what now?
A
Verified answer
Increase airflow, lower humidity and consider selective defoliation to let light and air reach inner buds.
Common question Posted by Urbanseedbank Answered
Q
Is CO2 enrichment worth it for Chem 4?
A
Verified answer
CO2 helps in sealed tents at high light levels, but it's not essential for medium-scale home grows.
Common question Posted by Urbanseedbank Answered
Q
How aggressive should I be with nutes?
A
Verified answer
Start at 50–70% of manufacturer recommendations and increase based on plant response to avoid nutrient burn.
Common question Posted by Urbanseedbank Answered
Q
What's the quickest way to reduce stretch?
A
Verified answer
Use a short veg period, lower night temperatures slightly and apply LST to control vertical growth.

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