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Black Thai

Feminised
Photoperiod

Black Thai is a sativa-led hybrid with dark, resinous buds and a compact habit suited to modest spaces in Cornwall.

Why choose Black Thai?
  • Sativa clarity with dark-fruited notes
  • Compact plant ideal for low ceilings and discreet grows
  • Performs reliably in cool coastal microclimates
THC 15-22%
CBD ≤1%
Lineage Thai x Afghan
Genotype Sativa-dominant hybrid
Difficulty Intermediate
Flowering 10-12 weeks
Height Compact to medium (60–140 cm)
Yield Moderate (350–450 g/m² indoor)
Taste Dark berry, Spicy herbal, Earthy sweetness
Seed Type Feminised, Photoperiod
Climate Cool Highland
Effects Euphoric uplift, Enhanced focus, Gentle body relaxation
Environment Indoor or outdoor (sheltered outdoor spots)

About Black Thai

Black Thai is a compact, resinous sativa-dominant hybrid prized for clear-headed effects and a dark, fruity flavour. In Cornwall it adapts well to greenhouse or sheltered outdoor sites when given protection from cool Highland weather. It suits growers who manage canopy and environmental control rather than chasing maximum bulk.

Grow Difficulty:

Under cool Highland growing conditions Black Thai needs attentive environmental control and a slightly longer ripening window. Growers in Cornwall should monitor humidity and temperature to prevent mould.

Flowering Time:

Flowering typically takes 10 to 12 weeks indoors. Outdoor growers can expect a similar or slightly longer finish depending on light and temperature.

Yield:

Yield is moderate compared with modern high-yield hybrids, favouring quality over mass. Expect sensible yields in compact gardens with good training.

Height:

Plants stay compact to medium in stature with a sturdy central cola and dense side branches. This structure suits low ceilings and discreet setups.

Environment:

Indoors Black Thai does very well in controlled environments common to growers in Cornwall with limited vertical space. Outdoors in Cornwall it performs best in sheltered spots with long sunlight hours and protection from prevailing winds.

Climate:

Growing Black Thai in Cornwall with cool Highland growing conditions requires vigilant frost avoidance and sun-maximising siting. The cool Highland influence slows ripening, so choose sheltered microclimates and consider cloche or greenhouse protection.

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
What's the best pot size for indoor plants?
A
Verified answer
10–20 litre pots balance root volume with space constraints in a compact room.
Common question Posted by Urbanseedbank Answered
Q
Should I bother with CO2 enrichment?
A
Verified answer
For small-scale or compact grows it's not essential; concentrate on good light distribution and airflow first.
Common question Posted by Urbanseedbank Answered
Q
What signs show nutrient uptake issues in cool conditions?
A
Verified answer
Pale lower leaves and stunted growth often point to nitrogen deficiency or poor uptake due to cold root zones.
Common question Posted by Urbanseedbank Answered
Q
When and how should I dry and cure?
A
Verified answer
Hang to dry at about 18–20°C and 45–55% RH for a slow cure, then jar and burp over several weeks for best results.
Common question Posted by Urbanseedbank Answered
Q
How can I protect outdoor plants from strong coastal winds in Cornwall?
A
Verified answer
Use hedges or temporary windbreaks and site plants in suntraps or behind solid shelter to reduce wind stress.

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