
- C4 — compact, clear-headed, greenhouse-ready
C4
C4 is a compact hybrid well suited to humid greenhouse environments and small indoor grows.
- Compact plants with a diesel-citrus profile
- Reliable mid-range THC and clear-headed effects
- Performs well in controlled humid greenhouse environments
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18-22% |
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0.5-1% |
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Chemdawg x Skunk |
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Hybrid |
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Intermediate |
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8-9 weeks |
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Medium, 60-100 cm |
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400-500 g/m2 |
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diesel, earthy, citrus |
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Feminised |
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Humid Greenhouse Environments |
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uplifting, focused, mild relaxation |
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Indoor and outdoor |
About C4
C4 is a practical hybrid bred for manageable height and a steady, clear-headed effect. It performs well in controlled greenhouse setups and adapts to small indoor spaces with correct ventilation. The variety delivers diesel and citrus flavours with THC in the high teens to low twenties and a low CBD presence. Growers should focus on humidity control and airflow in humid greenhouse environments to avoid mould and maximise yield. C4 responds to standard training techniques and rewards steady nutrients during an eight to nine week flowering period, producing moderate to generous harvests when managed carefully.
C4 is a balanced hybrid that leans slightly sativa in its cerebral effect. The genetics produce a clear-headed high with measured physical calm.
THC levels typically sit between 18 and 22 percent for mature plants. That range gives a reliably noticeable psychoactive effect without extreme intensity.
CBD content is low but present, generally under 1 percent. The profile supports recreational effects while offering a hint of therapeutic balance.
C4 traces to a Chemdawg x Skunk cross that favours clear, potent highs. The lineage contributes to the diesel-citrus aroma and stable growth structure.
Seeds are supplied as feminised material to give dependable female plants. Growers should still select for vigour and disease resistance at an early stage.
C4 is best described as intermediate in difficulty when grown in humid greenhouse environments. It needs careful humidity control and regular leaf inspection to avoid mould in those conditions.
Flowering usually completes in eight to nine weeks under stable conditions. Proper nutrient management during this period improves bud density and aroma.
Yields are moderate to generous for a medium-height plant, averaging 400–500 g/m2 indoors. With good climate control outdoors the crop can also be productive on a per-plant basis.
Plants remain compact with a single dominant cola and sturdy side branches. Expect final heights commonly between 60 and 100 centimetres under controlled light.
Indoors C4 adapts well to small rooms and purpose-built tents in Oxford where vertical space is limited. Outdoors it performs respectably near Oxford in sheltered spots provided pests and moisture are managed.
Growing C4 in Oxford calls for attention to humid greenhouse environments, especially during flowering. Good ventilation and dehumidification are essential to prevent mould and preserve terpene quality.
The high is uplifting and encourages focus without excessive anxiety. A gentle body relaxation follows that makes the variety versatile through the day.
The flavour profile blends diesel and earthy notes with a sharp citrus top. Smoke is clean with a lingering tang on the exhale.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
C4 typically flowers in eight to nine weeks under stable light and nutrient conditions.
C4 is intermediate; novices can succeed with good guidance on humidity and mould prevention.
Yes, C4's compact structure makes it suitable for small indoor cannabis grow spaces when height and ventilation are managed.
A well-aerated, slightly acidic soil or soilless mix with good drainage helps roots thrive and reduces mould risk.
Use active air circulation, control humidity with vents or dehumidifiers, and remove lower foliage to improve airflow around buds.
C4 responds well to a balanced bloom formula higher in phosphorus and potassium with moderate nitrogen tapering off as buds swell.
Aphids, spider mites and powdery mildew can appear in humid setups, so inspect plants regularly and act quickly at first signs.
Yes, low-stress training and a single topping early on produce multiple colas while keeping the canopy even.
C4 benefits from consistent strong light during flowering but will perform in modest setups if light schedules are stable.
Cure buds for at least two weeks in a cool, dark place with controlled humidity to mellow flavours and preserve terpenes.
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