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Mk Ultra

Regular

Mk Ultra is a compact, indica-dominant strain suited to cooler, windy coastal climates.

Why choose Mk Ultra?
  • Early-finishing indica built for cool coasts
  • Compact plants with heavy resin and tight buds
  • Effective for sleep and chronic pain when used cautiously
THC 18-22%
CBD <1%
Lineage G13 x OG Kush
Genotype Indica-dominant hybrid
Difficulty Moderate
Flowering 7-9 weeks
Height Short to medium (0.6–1.5 m)
Yield Low to moderate (≈300-450 g/plant outdoor, variable)
Taste Earthy, Pine, Spicy herbal
Seed Type Feminised
Climate Windy coastal, cool, short-season
Effects Heavy physical relaxation, Brief cerebral uplift, Sedative / sleepy finish
Environment 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.

Grow Difficulty:

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.

Flowering Time:

Indoor flowering usually completes within 7 to 9 weeks. Outdoor growers should plan for a similar calendar but allow extra margin for cool spells.

Yield:

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.

Height:

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.

Environment:

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.

Climate:

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.

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
How do you stake Mk Ultra against coastal gusts?
A
Verified answer
I use bamboo canes tied through twine and a low chicken-wire windbreak; it keeps stems upright without too much strain.
Common question Posted by Urbanseedbank Answered
Q
When do you typically harvest in the Highlands?
A
Verified answer
I aim for late September to early October, pulling ahead of expected heavy rain or early frosts.
Common question Posted by Urbanseedbank Answered
Q
Do you defoliate much by the coast?
A
Verified answer
Only minimal defoliation to open the centre for airflow; too much leaf removal exposes buds to salt and wind.
Common question Posted by Urbanseedbank Answered
Q
Which bloom additives work best here?
A
Verified answer
A moderate PK booster in weeks two to four of bloom helps resin and bud density without stressing plants.
Common question Posted by Urbanseedbank Answered
Q
How do you avoid bud rot in tight buds?
A
Verified answer
Keep plants well spaced, prune inner foliage and harvest promptly after prolonged wet spells to reduce rot risk.

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