Neville's Haze cannabis seeds packaging — Royal King Seeds Ireland
Sativa
THC 21%
😄 Mood Boost
SativaFeminisedIn Stock

Neville's Haze Feminised

Order Neville's Haze Feminised seeds online in Ireland. A quality sativa cultivar at 21% THC delivering euphoric, giggly, happy. Chosen for a short season and a damp finish. Fast shipping and a germination guarantee.

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Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Irish grower submissions, not breeder marketing. Determined from a single batch tested 2026-09-13 on 450 seeds at 20-23°C.

Germination rate: 98.7% (n=450)
Last QC test date: 2026-09-13
Indoor yield: 422-586 g/m² (avg across 14 verified grower reports)
Outdoor yield, Ireland: 484-754 g/plant (avg across 5 verified grower reports)

About Neville's Haze Feminised

Everything about Neville's Haze at harvest follows from one decision, which is when you stop. The figures are up to 700 g/m2 indoors and up to 1200 g/plant outdoors, with resin filling towards 21% THC. A 20/80 plant lays its weight down gradually instead of in a rush, so there is no single fattening window to aim at. The temptation in an Irish September is to cut early because the forecast looks poor; that costs more than the weather would have.

Where the weight is won

Three parts of the 14 weeks of bloom account for most of the difference between a good result and an average one on a plant rated up to 700 g/m2 indoors and up to 1200 g/plant outdoors.

The stretch, days 1-10 after the flip. Canopy height set here decides how evenly light lands for the rest of the run. Half again on top of veg height is normal. Supercrop anything that breaks the line inside the first week, or you spend the remaining weeks lighting one branch properly.

Weeks three to five. Terpinolene production climbs through this stretch and responds to a 6-8°C gap between lights-on and lights-off. Outdoors an Irish September provides that without help; indoors it has to be built, at roughly 25°C by day and 18-20°C at night. Bloom feed goes potassium-forward around EC 1.6-1.8.

The final fortnight. Feeding stops, plain pH-corrected water goes on, and the loupe comes out daily. Five to ten per cent amber keeps the clarity intact. Outdoors, that falls between late September and mid-October, and the forecast gets a say.

Flowering: 14 weeks. Indoor yield: up to 700 g/m2. Outdoor yield: up to 1200 g/plant. Plant height: Tall. Rated medium difficulty.

What Neville's Haze is like in practice

The catalogue lists euphoric, giggly, happy, and that matches what growers here report back. At 21% THC this sativa sits where there is a usable window rather than a cliff. At 175-185°C the first effect is lift and mental energy, which suits company, a long walk, or work that benefits from it. The body stays light, so it is a genuine daytime option for anyone with a tolerance. The Terpinolene and Limonene together leave a finish that keeps shifting across a session.

Suited to company, creative work, and getting out of the house.

Terpene breakdown

Primary: Terpinolene · Secondary: Limonene · Tertiary: Ocimene. The three shift relative to each other across the cure. Straight off the dry the terpinolene dominates; three or four weeks sealed in glass at 16-18°C and the ocimene underneath comes up to meet it. Vaporising between 180°C and 195°C catches the widest span, because heat takes the lighter ocimene molecules first.

Who it suits

Neville's Haze suits growers with the fundamentals in place. Understand pH, rough nutrient ratios and a light cycle before committing to it; it asks for competence rather than expertise. Photoperiod genetics leave plant size and harvest date under your control — veg longer for a bigger plant, or flip early when the ceiling is low. A bloom of 14 weeks fits inside the season here for outdoor growers, with a tunnel making it comfortable rather than tight.

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

Best For

✦ Anxiety
✦ Depression
✦ Evening
✦ Pain

Strain Type

Indica 20%Sativa 80%

Strain Data Sheet

🧬THC21% - 24% (High)
🌿LineageHaze × Northern Lights #5
🔬TypeFeminised Sativa
🌡ClimateWarm / Mediterranean, long season
📅HarvestSept – Nov, S. hemisphere (typical)
📏HeightTall
⚖️YieldHigh
🏠Yield Indoorup to 700 g/m2
🌳Yield Outdoorup to 1200 g/plant
⏱Flowering Time14 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminised Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers are responsible for complying with the law where they live.
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Neville's Haze Feminised
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🛡️Aluminium interior lining
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🔢Scratchable serial number

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Neville's Haze Feminised — 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
16 September 2026· 99%+ germination