
- Heavy resin, compact growth, reliable greenhouse performer
King Louis Xiii
King Louis Xiii is an indica-dominant hybrid prized for dense, resinous buds and strong relaxing effects.
- Dense, resinous buds ideal for resin extraction
- Performs strongly in protected greenhouse setups
- Predictable flowering and robust indica structure
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18-22% |
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Low (≤0.5%) |
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OG Kush x LA Confidential |
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Indica-dominant hybrid |
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Intermediate |
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8-9 weeks |
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Short to medium (80-140 cm) |
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Medium to high (indoor 350-450 g/m²; outdoor up to 600 g/plant) |
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Earthy, Pine, Spicy diesel |
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Feminised |
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moist western coastal |
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Deep relaxation, Euphoria, Sedation at higher doses |
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Greenhouse and indoor; outdoors in sheltered, well-aerated sites |
About King Louis Xiii
King Louis Xiii is an indica-dominant hybrid that produces compact, cola-heavy plants with a resin-rich profile. It performs well in controlled environments such as greenhouses and indoor rooms but requires careful humidity management in damp coastal climates to avoid mould.
King Louis Xiii is an indica-dominant hybrid bred for compact, resinous growth. The structure favours dense, rounded colas suited to controlled environments.
THC typically sits between 18% and 22% in stable phenotypes. That level produces clear psychoactive effects at moderate doses.
CBD is low, generally below 1% and not a primary trait of this variety. It is not suited to users seeking high-CBD profiles.
King Louis Xiii derives from OG Kush x LA Confidential. The cross concentrates indica traits and resin production.
Seeds are commonly sold as feminised to simplify canopy management and reduce male plants. Autoflower variants exist from some breeders but photoperiod feminised seed is standard.
Growing King Louis Xiii in a moist western coastal climate requires vigilant humidity control and airflow. In such conditions you should ventilate, dehumidify and remove lower foliage to reduce the risk of mould.
Flowering finishes in around 8–9 weeks under good conditions. A small portion of plants may benefit from a tenth week for full trichome development.
Yields are medium to high indoors and in protected greenhouse setups. Outdoor plants in sheltered locations can match greenhouse harvests if disease pressure is low.
Plants remain short to medium with a bushy, cola-heavy canopy that suits bench-style greenhouse layouts. Final height often falls between 80 and 140 cm depending on training and pot size.
This strain performs well in a greenhouse in Surrey when ventilation and airflow are managed. It also adapts to indoor rooms but needs humidity control to avoid bud rot in Surrey's damp spells.
In Surrey's moist western coastal climate growers should expect higher humidity and frequent damp periods. Use a greenhouse with controlled ventilation, heating and dehumidification to keep buds healthy.
Initial use brings a cerebral lift followed by heavy body relaxation. Higher doses commonly produce strong sedation.
Flavour combines earth, pine and diesel with a sharp herbal top note. The smoke leaves a lingering spicy aftertaste.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
For UK greenhouse cannabis growing, a ventilated greenhouse with dehumidification is ideal; maintain 20–26°C and 40–50% RH during flowering.
Keep good airflow, remove dense lower growth, run dehumidifiers during wet spells and monitor trichomes to avoid late-season rot.
Use moderate nitrogen in veg, switch to a balanced bloom feed then lower nitrogen and boost phosphorus and potassium mid to late flowering.
Harvest when most trichomes are milky with some amber for a balanced effect; target 8–9 weeks but check buds visually and with a loupe.
SCROG and low-stress training suit this strain to open the canopy and support heavy colas.
Most providers offer feminised photoperiod seeds; autoflower versions exist but are less common for this lineage.
Yes in sheltered, well-drained sites away from prevailing winds, but a greenhouse gives much better disease control in UK coastal regions.
Watch for bud rot, powdery mildew and spider mites; inspect regularly and use integrated pest management.
No, cultivating cannabis remains illegal in the UK without a Home Office licence; check current legislation before growing.
No, CBD is very low in King Louis Xiii so it's not suitable where CBD-specific effects are required.
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