
- Fuelled, Fast, Potent
91 Octane
91 Octane is a sativa-leaning hybrid known for diesel aroma and high THC.
- Sativa-leaning hybrid with diesel punch
- High THC for energetic daytime effects
- Performs well in greenhouses across Britain
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22-25% |
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0.5-1% |
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NYC Diesel x OG Kush |
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Hybrid |
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Intermediate |
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8-9 weeks |
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Medium (0.8-1.5 m) |
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High (up to 500 g/m² indoor, 350-450 g/plant outdoor) |
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Diesel, Citrus, Earthy |
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Feminised |
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Mild Maritime Climate, Suited To Uk Greenhouses And Coastal Regions |
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Uplifting, Energetic, Relaxing |
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Indoor Or Outdoor |
About 91 Octane
91 Octane is a sativa-leaning hybrid bred from NYC Diesel x OG Kush. I grow it in my greenhouse in Devon and find it gives solid yields and a strong diesel flavour. Plants stay medium height and suit most UK grow rooms when you train them. Flowering finishes in eight to nine weeks indoors and produces dense, resinous buds that respond well to a careful cure.
91 Octane is a balanced hybrid with a sativa-leaning profile. UK growers often favour it for daytime use and its manageable growth pattern.
At around 22 to 25 percent THC, 91 Octane sits above many classic UK favourites in potency. That means you should expect stronger effects than typical mid-strength strains and plan your dosing accordingly.
CBD sits low at around half to one percent, so 91 Octane is aimed at recreational effects first. British wellness users often look elsewhere for CBD-rich options, though you still get some entourage benefit here.
91 Octane comes from NYC Diesel x OG Kush. Those parents explain the diesel aroma and the Kush backbone in structure and resin production.
These seeds are offered as feminized genetics so you get predominantly female plants. British seed collectors appreciate the straightforward approach when planning a grow.
This strain suits growers with some experience due to moderate vigour and a need for regular trimming. In the UK's humid summers you will want good ventilation in a greenhouse to reduce mould risk.
Indoor flowering usually finishes in eight to nine weeks. Outdoors in the UK that places harvest around late September into October in milder spots like Devon or Kent.
Yields are generous for a hybrid, reaching up to 500 grams per square metre indoors and strong outdoor weights in sheltered sites. Greenhouse growers in Bristol or Manchester often hit the upper end when they train and feed well.
Plants remain a medium height and suit most home grow rooms, typically between 0.8 and 1.5 metres. If you grow indoors you will find they respond well to topping and SCROG to control stretch.
91 Octane performs well both indoors and outdoors. In damp British weather a greenhouse or covered site helps you protect buds from rain and humidity.
91 Octane prefers a mild maritime climate and suits sheltered UK sites from Cornwall up to Kent. In Scotland and the Highlands you will most likely need a greenhouse to control humidity and finish buds.
The high starts bright and uplifting with a clear energetic headspace that many UK users favour for daytime projects. That lifts into a gentle body relaxation that makes it useful for evenings too.
Flavour runs strongly of diesel with sharp citrus top notes and an earthy base. You will notice the fuel-like aroma when trimming and that carries through in smoke or vapour.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Most seeds sprout within 24 to 72 hours using a paper towel or direct soil method. Keep the medium warm and moist and your germination rate should be high.
Start with light veg nutrients and increase feed during flowering for higher resin and bud size. Watch leaf colour and adjust so you avoid nutrient burn in compact plants.
It responds well to SCROG because the plants have even internodes and bushy tops. SOG also works if you want many smaller plants for a faster turnaround.
Use good air exchange, lower humidity during late flowering, and avoid overcrowding. A greenhouse with vents and a dehumidifier in wet seasons helps a lot.
Aim for late September to mid October in milder regions, depending on phenotype and weather. Check trichomes for your preferred level of amber versus clear to time harvest.
Cure for at least two to four weeks in glass jars with daily burps at first. Longer cures up to eight weeks improve smoothness and flavour.
Topping at an early veg stage and low-stress training work well to keep stretch in check. SCROG is ideal if you have a standard grow tent height.
Aroma is strong and diesel-led, especially in late flowering and while drying. Use carbon filters or sealed greenhouse rooms if smell is a concern.
91 Octane shows consistent traits across runs but you will see small differences in citrus and diesel notes. Select the phenotype you prefer and keep cuttings for mother plants.
Store seeds in a cool, dark, dry place in an airtight container. A fridge works well for longer term storage if you protect seeds from moisture.
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