
- Earthy OG power with manageable growth for UK conditions
Blackwater Og
Blackwater Og is an indica-dominant hybrid that combines earthy Blackwater notes with classic OG Kush potency.
- Dense, resinous buds with classic OG punch
- Performs well under controlled humidity
- Good evening strain for pain and sleep
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18-22% |
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<1% |
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Blackwater x OG Kush |
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Indica-dominant hybrid |
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Intermediate |
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8-10 weeks |
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Medium, compact |
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Moderate |
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earthy, pine, diesel |
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Feminised |
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Short Outdoor Growing Season |
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relaxed, euphoric, sedative |
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Indoor and outdoor adaptable |
About Blackwater Og
Blackwater Og is an indica-dominant hybrid offering dense, resinous buds and a pronounced earthy-diesel aroma. It suits intermediate growers prepared to manage humidity and timing, performs well indoors and can be grown outdoors in cooler UK regions with planning to avoid a short outdoor growing season.
Blackwater Og is an indica-dominant hybrid with dense, resinous buds. It leans toward classic OG structure while retaining the dark, earthy notes of its Blackwater parent.
THC levels commonly range from 18% to 22%, offering a solid potency for regular consumers. New users should approach cautiously and dose slowly until they know their tolerance.
CBD is low in this variety, typically under 1%, so it is not chosen for CBD-led therapies. Those seeking higher CBD should consider pairing it with a CBD-rich strain.
Blackwater Og stems from a cross between Blackwater and OG Kush. That lineage provides both deep earthiness and classic OG potency.
Seeds are typically sold Feminised for predictable flowering and to reduce male plants in the canopy. This makes them easier for growers focused on producing sinsemilla to manage.
Blackwater Og suits intermediate growers who can manage humidity and precise feeding. In a short outdoor growing season you will need to start early and monitor trichome development closely.
Flowering usually completes in 8 to 10 weeks under controlled conditions. Outdoor growers should plan harvest timing carefully to avoid autumn weather delays.
Yield is moderate with dense, sticky buds rather than huge bulk. Careful canopy management and humidity control can improve bud weight.
Plants develop a medium, compact structure with sturdy branches that support heavy colas. They are manageable in smaller gardens and well-suited to training techniques.
Indoors Blackwater Og thrives under controlled humidity and regular training and benefits from SCRoG or topping. Outdoors in Lincolnshire plants can reach a useful size but will need protection from autumn rains in Lincolnshire to avoid mould.
Growing Blackwater Og in Lincolnshire requires strict timing because of the short outdoor growing season. Start under cover, harden off early and aim to finish flowering before autumn rains arrive in a short outdoor growing season.
The high begins with a clear, euphoric lift that eases into full-body relaxation. In higher doses it can become sedating for users prone to sleepiness.
The flavour profile mixes earthy pine with sharp diesel notes and a faint citrus edge. The smoke is thick and resinous with a lingering aftertaste.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Start plants under cover in late spring and harden off after the last frosts so they have maximum time to finish before autumn.
Good airflow, lower canopy density and careful attention to high humidity cannabis cultivation are essential to prevent mould and bud rot.
It responds well to standard feeding schedules with a slightly reduced nitrogen level during late flowering to encourage resin production.
Yes, a greenhouse gives you extra control over moisture and can extend the season, but ventilation and dehumidification are still vital.
Reduce humidity by improving ventilation, removing crowded foliage and using dehumidifiers where possible in enclosed spaces.
Selective defoliation helps light penetration and airflow but avoid over-pruning during wet periods to reduce stress and mould risk.
Aphids and spider mites can be an issue, especially if plants are weakened by humidity stress; inspect regularly and treat early.
Monitor trichomes with a loupe; harvest when most are cloudy with some ambers for a balanced effect.
Many growers flush for 7–14 days to improve smoke quality, but follow the plant's condition and personal preference.
Dry slowly in a cool, dark place then cure in jars with daily burping for the first two weeks to develop aroma and smoothness.
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