
- Compact power for cool, windy coasts
Mk Ultra
Mk Ultra is a compact, indica-dominant strain suited to cooler, windy coastal climates.
- Early-finishing indica built for cool coasts
- Compact plants with heavy resin and tight buds
- Effective for sleep and chronic pain when used cautiously
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18-22% |
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<1% |
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G13 x OG Kush |
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Indica-dominant hybrid |
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Moderate |
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7-9 weeks |
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Short to medium (0.6–1.5 m) |
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Low to moderate (≈300-450 g/plant outdoor, variable) |
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Earthy, Pine, Spicy herbal |
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Feminised |
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Windy coastal, cool, short-season |
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Heavy physical relaxation, Brief cerebral uplift, Sedative / sleepy finish |
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Indoor and outdoor |
About Mk Ultra
Mk Ultra is an indica-dominant hybrid prized for dense, resinous buds and a potent, sedative finish. Bred from G13 x OG Kush, it shows strong indica structure and reliable resin production. The strain suits controlled indoor grows and protected outdoor sites, particularly where the season is short. In the Scottish Highlands its compact habit helps, but growers should account for wind exposure and salt spray. Effects begin with a focused uplift before settling into deep physical relaxation, making it useful for sleep and pain relief when dosed carefully.
Mk Ultra is an indica-dominant hybrid with dense, resinous buds. It shows strong indica traits in both structure and effect.
THC is typically in the 18–22% range, giving it clear potency for most users. Caution is advised for inexperienced consumers due to the heavy finish.
CBD levels are very low, usually under 1%. This strain is cultivated for its psychoactive properties rather than CBD balance.
Mk Ultra descends from G13 x OG Kush. That parentage explains its resin production and indica-dominant characteristics.
Most seed runs are offered as Feminised varieties to ensure female plants. Some breeders also provide regular or autoflower selections for specific needs.
Growing Mk Ultra in windy coastal growing areas adds stress but remains manageable with support and shelter. Staking, windbreaks and careful site selection reduce plant damage and moisture issues.
Indoor flowering usually completes within 7 to 9 weeks. Outdoor growers should plan for a similar calendar but allow extra margin for cool spells.
Yields are typically low to moderate because of the compact structure and short-season suitability. Coastal winds and cooler temperatures can further reduce harvest weights.
Plants remain compact to medium in height with a squat, robust structure. That form helps limit wind damage but benefits from training for even canopy distribution.
Indoors Mk Ultra performs well under controlled light and temperature conditions for predictable results. Outdoors in the Scottish Highlands it stays compact but needs shelter from salt spray and strong gusts.
Growing Mk Ultra in the Scottish Highlands demands attention to wind and a short season, especially in windy coastal growing areas. Choose sheltered plots, containers or raised beds and use early-season protection to ensure full ripening.
Initial effects are a focused cerebral lift that sharpens mood briefly. The high descends into deep physical relaxation that can be sedating for some users.
The flavour profile is earthy with a clear pine backbone and a sharp herbal spice on the finish. Smoke is dense and resinous with a lingering bite.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Indoor flowering is commonly 7–9 weeks; outdoors aim to finish before late autumn rains.
Use stout staking, windbreaks such as hedging or netting and site plants near natural shelter like walls or tree lines.
Yes; its compact structure and relatively quick finish make Mk Ultra a solid choice for short season outdoor cannabis growing with proper protection and site selection.
Moderate feeding with a balanced base and a bloom-focused PK boost is ideal; reduce nitrogen as flowering progresses.
Check trichomes for a mostly milky to some amber mix and watch for pistils to have darkened and curled inwards.
Coastal grows can see aphids, caterpillars and, if ventilation is poor, botrytis; keep airflow good and inspect plants regularly.
Feminised seeds offer predictable growth, but autoflower varieties can be safer in very short seasons to guarantee maturity.
Dry slowly in a dark, ventilated room around 18–21°C and 45–55% RH, then cure in jars for several weeks for smoother flavour.
Yes; cultivation of cannabis without the appropriate licence remains illegal in the UK and can carry serious penalties.
Yes; LST, topping and low-stress training help open the canopy and can noticeably improve yield and airflow.
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