
- Resilient hybrid for mindful UK growers
Concrete Jungle
Concrete Jungle is a balanced hybrid that suits UK growers who manage humidity and seasonal constraints.
- Balanced hybrid built for resilience in damp seasons
- Citrus-led flavour with resinous, high-quality buds
- Performs well under controlled humidity and greenhouse cultivation
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18-22% |
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<1% |
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Northern Lights x Haze |
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Hybrid |
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Intermediate |
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8-10 weeks |
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Medium (up to 1.8m outdoors) |
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Medium-high |
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Citrus, Earthy, Pine |
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Feminised |
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short outdoor growing season |
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Uplifting, Focused, Relaxing |
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Indoor & Outdoor |
About Concrete Jungle
Concrete Jungle is a balanced hybrid bred for clear, uplifting effects with a mellow body finish. It combines Northern Lights sturdiness with Haze vigour, producing resinous buds with citrus and pine notes. In Fife and similar UK regions it performs well when growers control humidity and protect plants from late damp. The strain suits intermediate growers who adopt early training and consider greenhouse or sheltered outdoor sites to avoid rot during the short outdoor growing season.
Concrete Jungle is a balanced hybrid with a slight sativa tilt in its effects. It offers a blend of clear-headed energy and a soft physical calm.
THC levels typically fall between 18 and 22 per cent, giving a reliably potent experience. That range suits regular consumers and those building tolerance without being overwhelming.
CBD content is low and usually under 1 per cent. The strain is not bred for CBD therapy but can provide symptomatic relief via its THC profile.
The cross blends classic indica resilience with sativa vigour from Northern Lights x Haze. This explains the balanced effect and the plant's tendency for resin-rich flowers.
Seeds are commonly offered as Feminised for predictable female crops. Some breeders provide autos or regulars, but Feminised is the standard choice.
Growing Concrete Jungle is intermediate and rewards consistent feeding and good airflow. In a short outdoor growing season growers should plan training early and be ready to manage changing weather.
Flowering normally finishes in eight to ten weeks under favourable conditions. Outdoors timing can be tight, so monitor trichomes closely to pick the best harvest window.
Yield tends to be medium to high when plants are trained and supported through stretch. Outdoor volumes depend heavily on season length and humidity control.
The plant shows a medium-tall structure with long internodes and dominant central colas. With early topping and LST it remains manageable and productive.
Concrete Jungle responds well to indoor environments where light and humidity are controlled. Outdoors in Fife it benefits from sheltered spots and attentive late-season care.
Growing Concrete Jungle in Fife demands attention to the short outdoor growing season and the risk of late damp. Using greenhouses or polytunnels and choosing protected microclimates will greatly reduce rot risk.
The high is clear, focused and motivating, suitable for daytime tasks and creative work. A gentle, non-sedating body relaxation follows.
Flavours combine bright citrus top-notes with earthy pine and a faint diesel undertone. The smoke finishes clean with a persistent resinous aftertaste.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Switch when plants have established a strong root run and several sets of true leaves; indoors a 12/12 light schedule triggers reliable flowering.
Increase airflow, remove dense interior foliage and consider harvesting earlier if sustained damp is forecast.
Yes, with topping and low-stress training it fits compact spaces and produces sizable colas without becoming unmanageable.
Lower nitrogen and higher phosphorus and potassium during mid to late flowering supports bud development and resin production.
Introduce beneficial insects, use neem oil carefully pre-flower and keep a strict hygiene routine to avoid infestations.
Yes, but select a sheltered, well-draining site and aim to finish before autumn rains increase mould risk.
Many growers perform a short flush to improve smoke flavour, typically stopping nutrients one to two weeks before harvest for faster-drying buds.
Drying usually takes seven to twelve days depending on humidity, followed by a cure of at least two weeks for smoother smoke.
For high humidity cannabis cultivation reduce leaf density, boost circulation and consider dehumidifiers or heated ventilation to keep buds dry.
Choose early-finishing phenotypes and sturdy genetics; Concrete Jungle can work if you prioritise mildew resistance and microclimate protection.
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