Neville's Haze cannabis seeds packaging — Royal King Seeds the UK
Sativa
THC 21%
💰 Great Value
SativaFeminizedIn Stock

Neville's Haze Feminized

Feminized PhotoperiodSee Lab Report →

Order Neville's Haze Feminized seeds online. A quality sativa cultivar at 21% THC delivering euphoric, giggly, happy. Suited to all UK climate zones. Fast shipping and guaranteed germination.

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About Neville's Haze Feminized

Here is what Neville's Haze delivers at harvest: up to 700 g/m2 per square metre indoors, up to 1200 g/plant per plant outdoors in UK conditions, with resin production peaking at 21% THC. Those numbers tell a story when you work backwards through the 14 weeks window. Unlike quick-finishing indicas, this 20/80 cultivar distributes its weight gain across the full flowering period. Patience is non-negotiable — growers who chop early because they are anxious about autumn weather sacrifice 20-25% of their potential yield. For UK outdoor grows, that means committing to a harvest window from mid-March through April, depending on your latitude. The terpinolene-dominant terpene profile reaches peak complexity only in the final fortnight.

Maximising Your Harvest

To reach the upper end of this strain's yield potential (up to 700 g/m2 indoors, up to 1200 g/plant outdoors), focus your efforts on three critical windows during the 14 weeks period.

Window 1: The first 10 days after flowering begins. Stretch management determines canopy uniformity, which directly impacts light distribution and final yield. Stretch can reach 50-60% of pre-flower height. Supercrop any branches that outpace the canopy within the first week to maintain an even light field.

Window 2: Weeks 3-5 of bloom. Terpinolene terpene biosynthesis ramps up during this period. Maintain a day/night temperature differential of at least 6-8°C to encourage terpene accumulation — UK autumn evenings (March-April) naturally provide this swing for outdoor growers. Indoor cultivators should target 25-26°C during lights-on and 18-20°C during lights-off. Supplement with potassium-heavy bloom nutrients at EC 1.6-1.8.

Window 3: Final 10-14 days before harvest. Cease all nutrient input and flush with pH-adjusted water. Monitor trichomes daily with a 60x jeweller's loupe — harvest at 5-10% amber to preserve the cerebral, uplifting character. Southern Hemisphere outdoor growers: this window typically falls in late March through mid-April.

Flowering: 14 weeks. Indoor yield: up to 700 g/m2. Outdoor yield: up to 1200 g/plant. Rated intermediate difficulty.

What to Expect When Using Neville's Haze

UK customers report euphoric, giggly, happy as the defining characteristics, and our experience aligns with that consensus. At 21% THC, this sativa sits in a potency bracket where most users find a productive sweet spot. Vaporised at 175-185°C, the initial effect is a noticeable uplift in mood and mental energy that pairs well with creative projects, bushwalks, or social barbecues. The body remains light and mobile throughout, making this a genuine daytime option for those with THC tolerance. The Terpinolene/Limonene terpene combination imparts a flavour that lingers on the palate — complex and shifting, revealing new notes across the session.

Ideal settings: creative pursuits, social gatherings, outdoor adventures, and daytime leisure.

Terpene Breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. Together these three compounds construct an aromatic signature that evolves throughout the curing process. Freshly dried flower leads with terpinolene presence, but after three to four weeks in sealed glass jars at 16-18°C, the ocimene undertone strengthens and the overall bouquet develops a layered complexity. Vaporisation between 180°C and 195°C captures the broadest spectrum of these terpenes — higher temperatures degrade the more volatile ocimene molecules first.

Suitability and Recommendations

Neville's Haze suits growers with fundamental skills already established. You should understand pH management, basic nutrient ratios, and light cycle requirements before committing to this cultivar — it will not hold your hand, but it will not punish minor mistakes harshly either. Photoperiod genetics give you complete control over plant size and harvest timing — extend the vegetative phase for larger plants or flip early for a quicker turnaround in compact spaces. The UK growing season (October through April) accommodates the 14 weeks bloom period comfortably for outdoor cultivators in all states. Shipped discreetly across the UK with our germination guarantee.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
😆Giggly
72% of people reported feeling Giggly
😊Happy
58% of people reported feeling Happy
🤑Energetic
50% of people reported feeling Energetic
🤩Creative
50% of people reported feeling Creative
😎Uplifted
38% of people reported feeling Uplifted
🧠Focused
35% of people reported feeling Focused
🗣️Talkative
23% of people reported feeling Talkative
💪Motivated
24% of people reported feeling Motivated

Strain Type

Indica 20%Sativa 80%

Strain Data Sheet

🧬THC21% - 24% (High)
🌿LineageHaze × Northern Lights #5
🔬TypeFeminized Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestLate Sept – Oct, UK outdoor (typical)
📏Height120 – 200 cm (typical)
⚖️YieldHigh
🏠Yield Indoorup to 700 g/m2
🌳Yield Outdoorup to 1200 g/plant
Flowering Time14 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable UK Commonwealth, state, and territory legislation.
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Neville's Haze Feminized
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💧Waterproof coating
🛡️Aluminium interior lining
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🔢Scratchable serial number

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Neville's Haze Feminized — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
F5 IBL
Generations
5+
Breeding Programme
Royal King Genetics IBL — heritage cultivar restabilisation
Stabilisation Notes — What This Means for Your Grow

A genuine F5 inbred line. Neville's Haze has been progressed through five filial generations of phenotype selection at Royal King Genetics, working from the original 2010s production reference stock. Population uniformity is the rule rather than the exception.

Breeding Goal

Pin down the original 2010s production terpene profile in modern seed form.

Selection Focus

Chosen for vigour, manageable stretch and the cerebral terpene profile sativa growers buy this strain for.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

Last Batch QC Verified
5 December 2025· 99%+ germination