
- Big yields, cool-climate resilience, and deep relaxation.
Critical Purple
Critical Purple is an indica-dominant hybrid bred for high yields and purple hues in cool climates.
- High yields with purple buds
- Built for temperate, damp conditions
- Feminised seeds for predictable crops
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18-22% |
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0.2-0.6% |
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Critical Mass x Purple Afghani |
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Indica-dominant hybrid |
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Moderate |
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7-9 weeks |
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Short to medium (80-140 cm) |
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High (up to 500 g/m² indoor; 400-600 g/plant outdoor) |
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Sweet berry, Earthy wood, Spicy diesel |
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Feminised |
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Cool, damp climates with autumn rainfall; performs well in temperate, maritime regions |
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Relaxed body buzz, Mellow euphoria, Sleepy calm |
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Indoor / Outdoor |
About Critical Purple
Critical Purple is an indica-dominant strain combining heavy yields and purple colouration with a relaxed, sedative profile. It thrives under careful management in temperate, maritime regions and rewards growers who control humidity during a rainy autumn harvest season.
Critical Purple is an indica-dominant hybrid developed for dense, resinous buds. It favours a calming body effect with a modest cerebral lift.
THC levels typically sit between 18 and 22 percent, enough for experienced users while remaining controllable for regular consumers. Potency gives a clear onset and settles into a prolonged, relaxing finish.
CBD content is low, usually under 1 percent, so this is not a CBD-forward variety. The low CBD keeps the psychoactive profile focused on THC effects.
Critical Purple traces back to Critical Mass crossed with Purple Afghani to combine yield and colour. The lineage favours dense buds and purple pigmentation under cooler nights.
Seeds are offered as feminised, ensuring reliable female-only crops for growers. They respond well to training and cropping techniques.
Growing Critical Purple is moderately challenging and benefits from steady attention during flowering. Watch for mould risk during the rainy autumn harvest season and provide airflow and selective pruning.
Flowering generally finishes in 7 to 9 weeks under good conditions. Outdoor plants in the UK often ripen by mid to late autumn with careful timing.
Yields can be generous when plants receive ample light and nutrients. Outdoor crops in a sheltered spot frequently reach 400–600 grams per plant in favourable seasons.
Plants stay compact with a sturdy, bushy structure ideal for sea of green and scrog methods. Branching is predictable and supports heavy, resinous colas.
Indoors this strain performs well in controlled tents with dehumidification and good circulation in Leeds. Outdoors in Leeds it benefits from a sunny, sheltered aspect to avoid wind and excess rain.
Growing Critical Purple in Leeds requires planning for damp, cool conditions and the potential for late-season rain. In Leeds it is best placed where airflow and shelter reduce mould risk during a rainy autumn harvest season.
The high brings a warm, sedating body sensation that eases tension and physical discomfort. Mental effects are gentle and mildly uplifting before waning into relaxation.
Tastes combine sweet berry notes with earthy, woody undertones and a faint spicy diesel edge. The smoke is smooth and slightly syrupy on the exhale.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Yes, it performs well outdoors in the UK when sited in a sheltered, sunny spot and harvested before persistent cold and wet set in.
Aim to harvest once trichomes are mostly cloudy with some amber and before heavy autumn rains increase mould risk.
Maintain good airflow, reduce humidity with ventilation or silica gel in shelters, and remove excess foliage to keep bud sites open.
It responds well to a balanced NPK regime with a slightly reduced nitrogen feed during late flowering to encourage resin and colour.
A determined beginner can grow it, but attention to humidity control and timing is essential to avoid losses from the rainy harvest period.
Expect 7 to 9 weeks of flowering under controlled indoor conditions with stable light cycles.
Yes, cooler night temperatures can enhance purple pigmentation, especially in the final weeks of flowering.
Its genetics tolerate cooler, damp conditions better than many varieties, making it one of the more reliable cool climate cannabis strains for temperate regions.
Selective defoliation around inner bud sites helps airflow but avoid excessive leaf removal which can stress the plant.
Seeds are feminised and not autoflowering, so vegetative time and light schedules control the flowering start.
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