Free UK Shipping over £99
Discreet Plain Packaging
079 3899 2670
0
£0.00
Search
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

Grand Master Sexy

Feminised

Grand Master Sexy compact hybrid suited for controlled greenhouse or indoor grows with a balanced, resinous profile.

Why choose Grand Master Sexy?
  • Compact growth ideal for limited spaces
  • Resin-rich buds with consistent potency
  • Performs well under careful humidity control
THC 18-24%
CBD 0.5-1%
Lineage Master Kush x Granddaddy Purple
Genotype Hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Short to medium, 60-120 cm
Yield Medium to high (approx 400-550 g/m² indoors)
Taste Earthy, Citrus zest, Pine
Seed Type Feminised
Climate humid greenhouse environments
Effects Relaxed, Euphoric, Focused
Environment Indoor and greenhouse; suitable for controlled outdoor in mild climates

About Grand Master Sexy

Grand Master Sexy is a compact, resin-heavy hybrid bred for manageable indoor and greenhouse cultivation. It performs well in controlled environments, offering a reliable flowering time and a mix of cerebral lift and body relaxation while requiring attentive humidity and airflow management.

Grow Difficulty:

Growing Grand Master Sexy in humid greenhouse environments demands intermediate skills to manage mould and humidity. Good airflow, regular defoliation and preventive care reduce risk and improve bud quality.

Flowering Time:

Flowering time averages 8 to 10 weeks under optimal conditions. Some phenotypes may finish slightly earlier or later depending on feeding and light schedules.

Yield:

Yield is medium to high when plants receive appropriate support and nutrients. Expect around 400–550 g/m² indoors with training and correct feeding.

Height:

Plants remain compact to medium height with a dense central cola structure. Indoor heights typically range from 60 to 120 cm with limited stretch.

Environment:

Indoors, Grand Master Sexy responds well to SCROG and SOG setups and benefits from controlled lighting and ventilation. Outdoors in Cornwall it performs best in a sheltered greenhouse or a warm, protected spot to avoid wind and rain.

Climate:

In Cornwall, humid greenhouse environments increase the risk of mould and bud rot without strict humidity control. Maintain 40–50% relative humidity during flowering and use dehumidification and good ventilation to protect trichomes.

Frequently Asked Questions

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

Verified buyer feedback

Grower Reviews

0.0
No reviews yet. Be the first to share your experience.
Help other collectors choose well Leave a rating, short review, and optional photos.

Customer reviews

Customer photos 0 uploaded

No customer photos yet.
No reviews yet Be the first to leave feedback for this strain.
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 buds show early signs of mould, what now?
A
Verified answer
Remove affected areas immediately, improve ventilation and lower humidity; consider a targeted fungicide if legal and necessary.
Common question Posted by Urbanseedbank Answered
Q
Should I top or fim this strain?
A
Verified answer
Both work, but topping once early in veg gives a predictable canopy and encourages multiple main colas.
Common question Posted by Urbanseedbank Answered
Q
How often should I water in a greenhouse?
A
Verified answer
Water based on medium dryness rather than a set schedule; in a humid greenhouse you may water less frequently to avoid damp substrate.
Common question Posted by Urbanseedbank Answered
Q
When to start flushing before harvest?
A
Verified answer
Begin a gentle flush one to two weeks before harvest to improve smoke quality and reduce residual nutrients.
Common question Posted by Urbanseedbank Answered
Q
Is CO2 enrichment useful here?
A
Verified answer
CO2 can boost yields in sealed, well-lit environments but offers little benefit unless lights and nutrition are optimised.

Ask Urbanseedbank

Short, product-specific questions get the best answers.