Spec sheet first — strain: hybrid, seed type: feminized, THC: 15-19%, yield band: medium, environment: indoor or outdoor.

Lineage: White Widow S1, the self-cross that locks in the original's traits without the genetic drift that comes from outcrossing. Royal Queen Seeds worked with that foundation to produce a feminized version hitting 15–19% THC with a resin coat that's immediately obvious at harvest. Indoors she finishes in 8–9 weeks and pulls 450–500 g/m² under decent light — respectable numbers for a strain this old. The aroma leans earthy and pine-forward, nothing tropical or candy-sweet, which tends to suit growers who find modern fruit-forward varieties a bit much.

Difficulty sits at moderate, so first-timers won't be completely lost, but she responds well when you dial in VPD and don't push nutrients too hard. She handles both indoor and outdoor environments, and in warmer Canadian regions like southern Ontario or BC's Lower Mainland, an outdoor run is worth considering if your season runs long enough.

Best suited to intermediate growers who want a proven, straightforward strain without chasing novelty.

Genetics & Lineage

White Widow traces its genetics to White Widow S1. This hybrid-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 Royal Queen Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily euphoric and relaxed effects, making this strain ideal for evening use and unwinding after a long day. The body-centered stone builds gradually, easing tension and promoting deep physical relaxation. With THC levels reaching 19%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

White Widow delivers THC levels of 15-19%, 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 with a balanced head-and-body experience that evolves over time.

Growing White Widow

White Widow 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 8-9 weeks with yields of 450-500g/m². Plants typically reach 60-100cm 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

White Widow features a earthy, pine 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, White Widow is commonly reported to help with stress relief, chronic pain, insomnia, and muscle tension. The deeply relaxing effects make it a popular choice among medical users seeking nighttime relief. 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 White Widow?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy White Widow from Seennabis?

When you purchase White Widow through Seennabis, you are buying directly from Royal Queen Seeds — One of Europe's largest and most trusted seed banks, founded in Amsterdam in 2008. Every order includes verified genetics, discreet shipping, and responsive seller support. Royal Queen Seeds has completed over 257 sales.