Quick read: 20-26% THC, 100-180cm mature height, 10-14 weeks bloom. Genetics: Silver Haze (Sensi Seeds genetics). Difficulty: moderate.

Sensi Seeds lists this at $28.67 — below the median of $31.50 across 14 listings. Pack options: 3-seed at $28.67, 5-seed at $42.77, plus larger sizes.

Lineage: Silver Haze traces directly to Sensi Seeds' original Haze work, and that heritage shows up in everything from the growth structure to the effect profile. Plants stretch tall with long, resin-loaded colas, and the flowering window runs 10–14 weeks — longer than most growers are used to, but the wait is the whole point. THC lands in the 20–26% range, and the high leans hard into cerebral territory: focused, energetic, occasionally a little too much if you push the dose. Indoors you can expect 400–550g/m² from a clean run. The smell is earthy pine with a sweetness underneath that gets more pronounced as buds cure.

Difficulty is moderate, so first-timers may struggle with the stretch and the longer flower period — this one rewards growers who've already worked through a harvest or two and know how to manage canopy height.

Genetics & Lineage

Silver Haze traces its genetics to Silver 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

Silver 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 Silver Haze

Silver 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 10-14 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

Silver Haze features a sweet, earthy, pine, floral terpene profile that develops complexity throughout the flowering cycle. A smooth, candy-like sweetness defines the flavor, with subtle complexity on the exhale. 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, Silver 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 Silver 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 Silver Haze from Seennabis?

When you purchase Silver 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.