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Thrax

Feminised

Thrax is an indica-dominant hybrid bred for resinous buds and reliable greenhouse performance.

Why choose Thrax?
  • Resin-heavy buds with balanced cerebral lift
  • Performs well under greenhouse management in coastal regions
  • Reliable flowering time of eight to ten weeks
THC 18-24%
CBD 0.5-2%
Lineage Skunk x Haze
Genotype Indica-dominant hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Medium-tall
Yield Medium-high (400-500 g/m² indoor; 300-600 g/plant outdoor)
Taste earthy diesel, sharp citrus, herbal spice
Seed Type Feminised
Climate damp coastal climate
Effects uplifted focus, relaxed body warmth, mild euphoria
Environment Greenhouse / Outdoor

About Thrax

Thrax is an indica-dominant hybrid that blends Skunk vigour with Haze aromatic complexity to produce dense, resin-rich buds. The strain favours controlled greenhouse environments where humidity and airflow can be managed, and it rewards attentive feeding and training with medium-high yields and a clear, focused high.

Grow Difficulty:

Growing Thrax requires intermediate skills and careful humidity control in a damp coastal climate. Attention to airflow and early training prevents common fungal issues.

Flowering Time:

Flowering completes in roughly eight to ten weeks under stable lighting. Outdoor plants in cooler seasons may finish a little later.

Yield:

Yields are medium-high with correct feeding and training. Greenhouse setups in Essex can push production above average.

Height:

Plants reach a medium-tall stature with a dominant central cola and strong side branching. Thick stems support dense, resinous buds without excessive stretching.

Environment:

Indoors Thrax responds well to SCROG and topping and performs reliably in controlled greenhouse environments in Essex. Outdoors the variety tolerates coastal breezes but benefits from sheltered placement and vigilant mould checks in Essex gardens.

Climate:

In Essex this strain benefits from mild temperatures but faces mould pressure due to the damp coastal climate. Effective greenhouse ventilation and dehumidification are essential to secure healthy buds.

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 Essex is muggy; how do I lower humidity?
A
Verified answer
Add a dehumidifier, increase passive vents and run an extractor fan on a timer, especially overnight when humidity peaks.
Common question Posted by Urbanseedbank Answered
Q
Should I top Thrax plants indoors?
A
Verified answer
Yes, topping at 3–5 nodes encourages multiple colas and suits SCROG setups for even canopy development.
Common question Posted by Urbanseedbank Answered
Q
What feed schedule works best during bloom?
A
Verified answer
Switch to a bloom formula higher in P and K while reducing N after the stretch phase and monitor runoff EC weekly.
Common question Posted by Urbanseedbank Answered
Q
I see slow trichome development, what then?
A
Verified answer
Check light intensity, nutrient balance and temperature; slight increases in daytime light and stable temps often accelerate resin production.
Common question Posted by Urbanseedbank Answered
Q
How do I handle a sudden cold snap outside?
A
Verified answer
Move pots under cover or into the greenhouse, add thermal mass like water barrels, and temporarily raise night heating if possible.

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