The shortest version: Greenhouse Seeds's take on sativa genetics, 18-22% THC, 10-13 weeks flowering, moderate grow.

Lineage: rooted in Green House Seeds' Neville's Haze, one of the longer-running sativa projects in the catalogue — and that lineage shows up immediately in the grow tent. Flowering stretches 10 to 13 weeks, which is a real commitment, but the payoff is a yield that can hit 500–700 g/m² indoors when conditions are dialled in. THC sits in the 18–22% range with almost no CBD to soften it, so the effect is cerebral, clear-headed, and slow to fade — the kind that works better on a free afternoon than a busy workday.

Pine and earth dominate the nose, nothing tropical or candy-sweet here. It handles both indoor and outdoor environments reasonably well, though Canadian outdoor growers should plan around a long finish — coastal BC or southern Ontario are more realistic than the prairies. Difficulty is rated moderate, meaning topping and a solid light schedule will make a noticeable difference in final weight.

Best suited to experienced growers who don't mind a longer flowering window and want a straightforward sativa effect without a lot of processing.

Genetics & Lineage

Neville's Haze traces its genetics to Neville's Haze (Green House Seeds genetics). This sativa-dominant feminized seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by Greenhouse Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily energetic and creative effects, making this strain perfect for daytime use, creative projects, and staying productive. The cerebral lift arrives quickly, sharpening focus and inspiring motivation. With THC levels reaching 22%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Neville's Haze delivers THC levels of 18-22%, placing it in the moderate-to-strong range that most regular consumers find comfortable. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within minutes, starting as a cerebral buzz that gradually expands.

Growing Neville's Haze

Neville's Haze is rated as moderate difficulty, making it suitable for growers with some experience. Basic knowledge of nutrient schedules, pH management, and environmental controls will help maximize results.

Indoor Growing: Expect a flowering time of 10-13 weeks with yields of 500-700g/m2. Plants typically reach 130-220cm indoors. This strain responds exceptionally well to SCROG (Screen of Green) and LST (Low Stress Training), which can boost yields significantly. Maintain temperatures between 68-80°F with relative humidity around 45-55% during flowering.

Outdoor Growing: This versatile strain performs well in both indoor and outdoor environments. Outdoor growers in warm climates can expect harvest from late September through October. Watch for humidity during late flowering to prevent bud rot, especially with the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Neville's Haze features a pine, earthy terpene profile that develops complexity throughout the flowering cycle. Sharp forest and resin notes create a fresh, invigorating flavor with earthy depth. The aroma intensifies significantly during the final 2-3 weeks of flowering — carbon filtration is recommended for indoor grows requiring discretion.

Medical Benefits

While individual experiences vary, Neville's Haze is commonly reported to help with depression, fatigue, lack of motivation, and ADHD symptoms. The uplifting, focusing effects make it popular among medical users seeking daytime functionality. As with any cannabis strain, start with a low dose and increase gradually. Consult a healthcare professional before using cannabis for medical purposes.

Who Should Grow Neville's Haze?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you need a daytime boost for creativity and sustained focus, look no further.

Why Buy Neville's Haze from Seennabis?

When you purchase Neville's Haze through Seennabis, you are buying directly from Greenhouse Seeds — Renowned Strain Hunters founded by Arjan Roskam, 'The King of Cannabis'. Every order includes verified genetics, discreet shipping, and responsive seller support. Greenhouse Seeds has completed over 92 sales.