
Neville's Haze Feminised
Neville's Haze Feminised seeds. A sativa cultivar at 21% THC delivering euphoric, giggly, happy. Grow figures from named sources.
Royal King Genetics — first-party test batch
Figures below are from our internal seed-lot QC and verified UK grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-01 on 150 seeds.
About Neville's Haze Feminised
Read Neville's Haze backwards from the harvest: up to 700 g/m2 under lights, up to 1200 g/plant outdoors, with resin filling out towards 21% THC. This 20/80 cultivar spreads its weight gain across the whole of bloom instead of front-loading it the way a quick indica does. Cutting early out of nerves about the weather is the most expensive mistake made with plants of this shape. In Britain that means holding through late September and into October depending on your latitude, because the terpinolene-led profile only fills out in the closing fortnight.
Getting the weight out of this plant
Three stretches of the 14 weeks of bloom decide whether you reach the top of this strain's range (up to 700 g/m2 indoors, up to 1200 g/plant outdoors). The rest is maintenance.
The first ten days of flower. What the plant does during the stretch sets canopy height, and canopy height sets how evenly the light lands. It can add half again its height. Supercrop anything that breaks the line of the canopy inside the first week or you will spend the rest of bloom lighting one branch properly and five badly.
Weeks three to five. Terpinolene production climbs through here, and it responds to a day-night temperature gap of 6-8°C. British autumn nights hand that to outdoor growers for free from September; indoors you have to build it, at roughly 25-26°C lights-on and 18-20°C lights-off. Bloom feed goes potassium-heavy around EC 1.6-1.8.
The last ten to fourteen days. Stop feeding and run pH-corrected water. Check trichomes daily under a 60x loupe — cut at 5-10% amber to keep the clear, lifted character intact. Outdoors that lands between late September and mid-October across most of Britain, and the weather forecast should get a vote.
Flowering: 14 weeks. Indoor yield: up to 700 g/m2. Outdoor yield: up to 1200 g/plant. Rated intermediate difficulty.
What Neville's Haze is actually like
Growers report euphoric, giggly, happy as the defining characteristics and our own notes agree. At 21% THC this sativa sits where most people find a workable window. Vaporised at 175-185°C the first effect is lift and mental energy, suited to work that benefits from it, a long walk, or an afternoon with company. The body stays light throughout, which makes it a genuine daytime option for anyone with a tolerance. The Terpinolene/Limonene pairing leaves a finish that keeps changing across a session.
Best suited to creative work, company, getting outdoors, and daytime use generally.
Terpene breakdown
Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. These three build an aroma that keeps moving through the cure. Fresh off the dry it leads with terpinolene; after three or four weeks sealed in glass at 16-18°C the ocimene underneath comes up and the whole thing gains a layer. Vaporising between 180°C and 195°C catches the widest span of them, since the lighter ocimene molecules are the first thing heat destroys.
Who it suits
Neville's Haze suits growers with the basics in place. Understand pH, rough nutrient ratios and light cycles before you commit to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for bigger plants, or flip early when space is short. The April to October season accommodates a bloom of 14 weeks comfortably for outdoor growers across the country.
Effects
Strain Type
Strain Data Sheet
Packaging
Feminised Premium
Seeds
authenticity
lining
number
Related Strains

Charlie Sheen Auto
Charlie Sheen Auto seeds. A hybrid cultivar at 19% THC delivering euphoric, happy, relaxed. Grow figures from named sources.

OG Chem Feminised
OG Chem Feminised — sativa cannabis seeds suited to UK growing conditions. 20% THC with euphoric, happy, uplifted effects. Fast, discreet UK delivery.

Marcosus Marshmellow Feminised
Grow Marcosus Marshmellow Feminised in the UK. Indica genetics at 14% THC, known for euphoric, creative, focused effects.

Godberry Feminised
Godberry Feminised — indica cannabis seeds suited to UK growing conditions. 19% THC with euphoric, calm effects. Fast, discreet UK delivery.
Neville's Haze Feminised — Breeder Information
Royal King GeneticsBred 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.
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.
Pin down the original 2010s production terpene profile in modern seed form.
Chosen for vigour, manageable stretch and the cerebral terpene profile sativa growers buy this strain for.
Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.