Why this one matters: sativa genetics with a 20-26% THC ceiling and fruity/citrus-led terps. 10-14 weeks flowering, indoor or outdoor.

Lineage: rooted in Sensi Seeds' Haze work, X Haze Feminized carries the fingerprints of those original Dutch-imported Haze crosses that reshaped the European gene pool in the 1980s. The terpene profile leans citrus and pine with a softer fruity note underneath — think orange peel left near a cedar plank. THC runs 20–26%, and the effect is long, cerebral, and active rather than sedating, which suits daytime or creative sessions. Flowering stretches 10–14 weeks, so indoor growers running tight schedules should plan ahead; outdoors in BC or Ontario you'll want a long, warm autumn or a light-dep setup to finish on time. Yields land around 400–550 g/m² under decent lighting, but the canopy gets rangy and needs structure. This one rewards growers who already know how to read a plant — not the right pick for a first run.

Genetics & Lineage

X Haze traces its genetics to X Haze (Sensi 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 Sensi Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily energetic and euphoric 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 26%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

X Haze delivers THC levels of 20-26%, placing it in the high-potency category alongside powerhouses like Gorilla Glue and Girl Scout Cookies. 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 X Haze

X Haze is rated as advanced difficulty, making it best suited for experienced cultivators who understand advanced techniques. This strain rewards meticulous attention to detail with exceptional results.

Indoor Growing: Expect a flowering time of 10-14 weeks with yields of 400-550g/m². Plants typically reach 100-180cm indoors. Standard training techniques like topping and LST will help manage height and improve light penetration. 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 dense flower formations.

Flavor, Aroma & Terpene Profile

X Haze features a fruity, citrus, pine, floral terpene profile that develops complexity throughout the flowering cycle. Sweet berry and grape notes dominate the inhale, with a sugary exhale that lingers on the palate. 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, X 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 X Haze?

This strain is ideal for advanced cultivators and breeders seeking exceptional phenotypes and willing to invest the extra care required. If you need a daytime boost for creativity and sustained focus, look no further.

Why Buy X Haze from Seennabis?

When you purchase X Haze through Seennabis, you are buying directly from Sensi Seeds — The world's oldest cannabis seed bank, founded in Amsterdam in 1985. Every order includes verified genetics, discreet shipping, and responsive seller support. Sensi Seeds has completed over 177 sales.