
- Balanced flavour, reliable yields — bred for the temperate British grower.
London Jelly
London Jelly is a mid-THC hybrid bred for balanced effects, sweet jelly flavours and reliable yields.
- Sweet jelly aroma with a clear, uplifting high
- Performs well in controlled tents and sheltered outdoor plots
- Reliable mid-to-high yields with robust resin production
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18-22% |
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0.5-1% |
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London Pound x Jelly |
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Hybrid |
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Intermediate |
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8-10 weeks |
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Medium (0.8-1.2 m indoors; 1-2 m outdoors) |
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Medium-High (up to 450 g/m² indoor; 400-500 g/plant outdoor) |
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Sweet berry jelly, Citrus zest, Earthy undertones |
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Feminised |
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Temperate southern England |
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Relaxed body buzz, Lifted, clear-headed euphoria, Focused and sociable |
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Indoor & Outdoor |
About London Jelly
London Jelly is a hybrid chosen for its sweet berry jelly flavour, clear-headed uplift and dependable performance in temperate gardens. It suits growers in Hertfordshire who want a robust, resinous strain that responds well to training and controlled-environment techniques.
London Jelly is a balanced hybrid with slightly indica-dominant structure. The plant produces dense, resinous buds suited to both resin extraction and smoking.
THC levels sit in the mid-to-high range, typically between eighteen and twenty-two percent. The potency gives a clear cerebral lift followed by gentle body relaxation.
CBD content is low, usually under one percent, so therapeutic effects are mainly THC-driven. This means doses should be tailored for sensitive users.
London Jelly descends from a London Pound parent crossed with a jelly-type cultivar. The cross gives a balance of resin production, aroma and robust vigour.
Seeds are sold as feminised to ensure a high proportion of flowering females. They produce consistent phenotypes suited to both indoor and sheltered outdoor growing.
Grow difficulty is intermediate and manageable for growers with some experience in ventilated tents or small glasshouses. The temperate southern England climate can be forgiving but requires attention to humidity and ventilation.
Flowering finishes in around eight to ten weeks under optimal conditions. Outdoor growers can expect ripeness in late September to early October in a normal season.
Yields are medium-high when trained and fed correctly, especially under good light. Careful pruning and support will maximise bud development.
Plants reach a medium height with sturdy central colas and lateral branching. They respond well to SCROG and low-stress training to control stretch.
Indoors this strain performs well in a controlled environment with good air exchange and stable temperatures in Hertfordshire. Outdoors it rewards sunny, sheltered sites and benefits from a little extra protection in late season in Hertfordshire.
Growing London Jelly in Hertfordshire suits its needs because the temperate southern England climate gives a long, mild growing season. Growers should still prepare for damp autumns and use good ventilation to prevent mould.
The high-THC profile starts with a clear, uplifting mental buzz that encourages conversation and creativity. The uplift settles into a comfortable, calm body sensation without heavy sedation.
A pronounced sweet berry jelly note is supported by citrus top notes and a faint earthy base. The smoke is smooth with a lingering sweet aftertaste.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
A controlled tent or small room with LED or HPS lighting, proper ventilation and carbon filtration produces the best results indoors.
Harvest in late September to early October when trichomes are mostly cloudy with some ambers, depending on your desired effect.
Maintain good airflow, avoid high late-season humidity, and remove dense fan leaves to improve light and air penetration.
Yes, topping and low-stress training help control height and open up the canopy for even bud development.
A balanced veg formula followed by phosphorus-heavy bloom nutrients and controlled feeding will support resin and bud formation.
Expect around eight to ten weeks of flowering under stable indoor conditions or a normal UK outdoor season.
It is best for intermediate growers, though a prepared novice can succeed with attention to humidity and training.
A greenhouse is a good compromise outdoors, offering more control over humidity and temperature than open-air plots.
Lower late-season nitrogen, introduce finishing PK boosts and keep temperatures slightly cooler at night to enhance terpene expression.
Controlled climate cannabis growing reduces stress on the plant, allows precise humidity and temperature management, and significantly lowers the risk of mould while maximising yield and terpene preservation.
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