Neville's Haze
Cannabis seeds
by Greenhouse Seeds
Neville's Haze Cannabis Seeds by Greenhouse Seeds
Neville's Haze is a near-pure sativa cannabis seed strain from Greenhouse Seeds that delivers one of the most intense cerebral highs you'll find in a seed catalogue. With 21% THC, a 14-week flowering period, and yields that can hit 1.2kg per plant outdoors, this is a grower's strain — built for patience, rewarded with abundance. If you want a seed that produces bud capable of sending your train of thought into overdrive, this is the one.
Neville's Haze Seed Pack Sizes
Greenhouse Seeds offers Neville's Haze feminized seeds in three pack sizes. Given the long flowering time, we'd suggest the 5-pack as the sweet spot — enough to select the strongest phenotypes without committing to a full 10-pack on your first run.
| Pack | Seeds | SKU | Best For |
|---|---|---|---|
| Small | 3 | CSGH0103 | Test run — see how she handles your setup |
| Standard | 5 | CSGH0104 | Our pick — room to select the best phenotypes |
| Large | 10 | CSGH0105 | Dedicated growers planning a full canopy |
Specifications for Neville's Haze Feminized Seeds
| Spec | Value |
|---|---|
| Seed Bank | Greenhouse Seeds |
| Genetics | Near-pure Sativa with slight Indica influence |
| Sex | Feminized |
| THC Content | 21% |
| Flowering Time | 14 weeks (some phenotypes longer) |
| Indoor Yield | Up to 700 g/m² |
| Outdoor Yield | Up to 1.2 kg per plant |
| Outdoor Harvest | Mid-November |
| Bud Structure | Candle-shaped, dense, heavy trichome coverage |
| Awards | 2nd Prize, Sativa Category, Cannabis Cup |
| Available Packs | 3, 5, or 10 seeds |
Growing Neville's Haze indoors? Her 14-week flower cycle and heavy buds demand solid support and consistent environment control. A proper grow tent and plant support stakes or a SCROG net will keep those candle-shaped colas from snapping branches. If you're running a long-flower sativa for the first time, a complete grow kit takes the guesswork out of ventilation and lighting.
Why Neville's Haze Cannabis Seeds Are Worth the Wait
We get it — 14 weeks of flowering sounds like an eternity when most indica-dominant strains finish in 8 or 9. But there's a reason experienced growers keep coming back to Neville's Haze, and it's not nostalgia. This strain produces a cerebral, stimulating, creative, and deeply introspective effect profile that shorter-flowering hybrids simply don't replicate. The 21% THC content isn't just a number on a page; it's concentrated almost entirely into that classic sativa head-space that makes you want to write, paint, or have a three-hour conversation about the nature of consciousness.
The yield numbers speak for themselves. Indoors, 700 g/m² is genuinely impressive for any strain, let alone a sativa-dominant one. Outdoors, where she has room to stretch, 1.2 kg per plant is the kind of return that makes the long season worthwhile. The buds grow in candle-shaped formations, wear a hairdo of white, lime-green, and orange-to-rust-coloured pistils, and get so heavy with trichomes that you'll need to support the branches or watch them bow and snap. That's not a design flaw — that's abundance.
The honest limitation: this is not a beginner-friendly grow. The 14-week flowering period (some phenotypes push even longer) means more time for things to go wrong — pests, nutrient drift, humidity issues. You need patience and a stable environment. If you're on your first or second grow, something like a faster-finishing hybrid from Greenhouse Seeds' catalogue might be a better starting point. But if you've got a few harvests under your belt and you want to grow something genuinely special, Neville's Haze is the strain we'd point you toward.
What Neville's Haze Smells and Tastes Like
The aroma profile on this strain is unmistakable. Greenhouse Seeds describes it as "a skunk got into your spice rack," and that's honestly the most accurate shorthand we've come across. There's a sharp, pungent skunk backbone layered with warm spice notes — think cumin, black pepper, and a hint of incense. When you break up the cured buds, a sweet, tart, damp smell hits your nose, almost like overripe fruit left in a humid greenhouse. It fills a room fast. If you're growing indoors, a carbon filter isn't optional — it's survival.
The trichome coverage is extraordinary. These buds look frosted, almost white under certain light, and they're sticky enough to gum up a cheap grinder in two sessions. If you're planning to process any of your harvest for concentrates, Neville's Haze is one of the best sativa strains for resin production.
How to Grow Neville's Haze Seeds
- Germinate your feminized Neville's Haze seeds using the paper towel method or directly in a starter plug. Expect taproots within 24–72 hours at around 22–25°C.
- Transplant seedlings into their growing medium once the taproot is 1–2 cm long. Neville's Haze responds well to both soil and hydro setups, though soil tends to bring out more complex terpene profiles.
- During the vegetative phase, keep in mind that this near-pure sativa will stretch significantly. If growing indoors, consider topping or using a SCROG (Screen of Green) net to manage height and create an even canopy.
- Switch to a 12/12 light cycle to trigger flowering. Mark your calendar — you're looking at a minimum of 14 weeks from here. Some phenotypes will push to 16 weeks. Do not rush the harvest based on impatience.
- Support the branches from week 8 onwards. The candle-shaped buds get genuinely heavy with trichome-loaded mass, and unsupported branches will bow or snap. Bamboo stakes, plant yo-yos, or a trellis net all work.
- Monitor trichome colour with a jeweller's loupe during the final 2 weeks. For the classic sativa cerebral effect, harvest when trichomes are mostly cloudy with minimal amber.
- Outdoor growers: plan for a mid-November harvest. This means Neville's Haze is best suited to Mediterranean or similarly warm climates where autumn stays dry long enough to avoid bud rot.
- Dry buds slowly in a dark, ventilated space at 18–22°C and 55–60% humidity for 7–14 days, then cure in glass jars for at least 2 weeks. Proper curing brings out that sweet-tart-spice aroma profile in full.
Neville's Haze vs Other Long-Flowering Sativas
If you're specifically after a long-flowering sativa with serious cerebral effects and you're comparing options, Neville's Haze sits at the top of Greenhouse Seeds' sativa lineup for a reason. The 2nd Prize in the Sativa Category at the Cannabis Cup isn't just a sticker on the packet — it's recognition from judges who've smoked hundreds of entries. Compared to shorter-flowering sativa-dominant hybrids, the extra weeks translate directly into more complex terpene development and a more layered, introspective effect profile. You're trading time for quality, and the 700 g/m² indoor yield means you're not sacrificing quantity either.
For growers who want sativa effects but can't commit to 14+ weeks, Greenhouse Seeds' Arjan's Haze or Super Silver Haze both finish faster. They're solid strains. But they don't hit the same depth. Neville's Haze is the one we'd grow if we had one shot at a sativa harvest and the patience to see it through.
Frequently Asked Questions
How long does Neville's Haze take to flower?
Neville's Haze requires a minimum of 14 weeks of flowering. Some phenotypes push to 16 weeks. This is one of the longest flowering periods you'll encounter in commercially available cannabis seeds, and it's the trade-off for the strain's intense sativa-dominant effects and massive yields.
What is the THC content of Neville's Haze?
Neville's Haze tests at 21% THC. That's concentrated into an almost pure sativa genetic profile, which means the effect leans heavily cerebral — stimulating, creative, and introspective rather than sedating.
Is Neville's Haze suitable for beginner growers?
Honestly, no. The 14-week flowering period leaves a long window for problems like pests, nutrient issues, or humidity fluctuations. The branches also need physical support as buds develop. We'd recommend at least 2–3 successful harvests before taking on Neville's Haze.
Can I grow Neville's Haze indoors?
Yes, and she performs well indoors — up to 700 g/m². The main challenge is height management. As a near-pure sativa, she stretches significantly during flowering. Use topping, low-stress training, or a SCROG net to keep the canopy manageable in a tent setup.
What does Neville's Haze smell like?
Sharp skunk layered with warm spice — cumin, black pepper, a hint of incense. Breaking up the buds releases a sweet, tart, damp aroma. It's pungent. If you're growing indoors, run a carbon filter or your entire building will know about it.
When is Neville's Haze ready for outdoor harvest?
Mid-November in the Northern Hemisphere. This makes her best suited to warm, dry climates — Mediterranean, southern Spain, parts of California. In northern Europe, the late harvest date and autumn rain create a high risk of bud rot.
How much does Neville's Haze yield outdoors?
Up to 1.2 kg per plant outdoors, given a full season in a warm climate. That's an exceptional yield for a sativa-dominant strain. Indoor yields reach up to 700 g/m², which is equally impressive for a 14-week flower.
Are Neville's Haze seeds feminized?
Yes. The Greenhouse Seeds Neville's Haze seeds we carry are feminized, meaning every seed produces a female plant. No need to sex your plants or worry about males pollinating your crop.
Last updated: April 2026
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.