
- Helium — bright, compact, and reliably productive in controlled spaces
Helium
Helium is a sativa-dominant hybrid with lively citrus and pine notes and moderate to high THC.
- Uplifting cerebral headspace with light body ease
- Compact plants suited to limited height spaces
- Resilient terpene profile with citrus and pine
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18-24% |
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<1% |
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Blue Dream x Lemon Haze |
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Sativa-dominant hybrid |
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Intermediate |
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8-10 weeks |
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Compact, 80–130 cm indoors |
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Medium-high (≈400–500 g/m²) |
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Citrus zest, Pine and herbal notes, Light diesel spice |
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Feminised |
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humid greenhouse environments |
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Uplifting cerebral rush, Focused creativity, Gentle physical relaxation |
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Indoor / greenhouse; sheltered outdoor |
About Helium
Helium is a sativa-dominant hybrid bred from Blue Dream x Lemon Haze that offers uplifting cerebral effects and compact, productive plants. It performs well in controlled indoor and greenhouse settings and rewards growers who manage humidity and airflow carefully.
Helium is a sativa-dominant hybrid that favours energetic, upright growth. The variety shows lively terpene expression with resilient branching.
THC typically ranges from 18% to 24% across tested phenotypes. Some selections can rise slightly above that range in small, well-managed runs.
CBD is low, generally under one per cent. This strain is not bred for high-CBD therapeutic use.
Helium comes from Blue Dream x Lemon Haze. The cross blends berry and citrus lineage with haze-derived elevation.
Seeds are sold Feminised to reduce the chance of males and simplify planning. They are stable enough for hobbyists and small-scale breeders.
Under humid greenhouse environments Helium needs vigilant humidity control to prevent mould. It suits growers with intermediate experience who can manage ventilation and canopy airflow.
Flowering usually completes in eight to ten weeks depending on the phenotype. Early-finishers are closer to eight weeks while other pheno stretch to around ten.
Yield is moderate to generous when plants are kept disease-free and trained. Expect roughly 400–500 grams per square metre in optimised indoor setups.
Plants remain compact with a strong central cola and well-spaced side branches. Indoor height typically sits between eighty and one hundred and thirty centimetres without extreme training.
Indoors in Hampshire Helium responds well to SCROG and mainlining, filling small areas with dense bud sites. Outdoors in Hampshire it prefers a sheltered greenhouse or a sunny wall to reduce wet weather exposure.
Growing Helium in Hampshire with humid greenhouse environments requires active dehumidification and constant inspection for bud rot. Keep flowering humidity between 45% and 55% and ensure good air movement to protect yields.
Initial effects are cerebral and uplifting, useful for creative tasks. That lifts into a light body ease that does not induce heavy sedation.
The flavour profile mixes bright citrus with pine and a restrained sweet note. The finish carries a mild diesel spice that lingers briefly.
Frequently Asked Questions
Common questions about this strain, covering growth, effects, and suitability for UK conditions.
Use a 12/12 light schedule to induce and maintain flowering; ensure lights are consistent to avoid stress.
Aim for 45–55% RH during flowering, run dehumidifiers when needed, and monitor for any signs of mould.
Yes; low-stress training and SCROG help control height and improve bud distribution in small indoor cannabis grow spaces.
Start with a balanced vegetative feed then switch to a bloom formulation with slightly reduced nitrogen and higher phosphorus and potassium.
This FAQ entry contains two answers by mistake.
Keep the canopy open, remove dense inner foliage, and increase airflow; inspect buds frequently during late flowering.
Spider mites and powdery mildew can appear; use integrated pest management and biological controls where possible.
Cure for at least two to four weeks in airtight jars, burping daily at first, to improve flavour and smoothness.
Yes, but choose a sheltered position or greenhouse in Hampshire to reduce exposure to rain and mould risk.
Expect some variance in stretch, terpene intensity and finishing time between individual plants; select the best phenos for future runs.
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