Why this one matters: sativa genetics with a 20-25% THC ceiling and fruity/citrus-led terps. 10-12 weeks flowering, indoor or outdoor.

Blimburn Seeds lists this at $25.98 — the lowest base price in the comparison ($32.40 floor). Pack options: 3-seed at $25.98, 5-seed at $36.20, plus larger sizes.

Smell-first, this one announces itself before the jar is halfway open — citrus peel and raw diesel layered under something almost tropical. RS11 from Blimburn Seeds is a feminized sativa sitting at 20–25% THC, bred in Barcelona and now a regular in US grow rooms for good reason. Flowering runs 10 to 12 weeks, which is on the longer side for a sativa but growers who stick it out pull 400–500g/m² under decent light — respectable numbers without chasing perfect conditions. It handles both indoor tents and outdoor plots at a moderate skill level, meaning you'll want some training experience but won't need to babysit it like a finicky clone-only cut.

Effects land cerebral and talkative rather than couch-locked, with enough drive for daytime use without the anxious edge some high-THC sativas carry. Best suited for growers who have a few harvests under their belt and want a flavorful, high-yield sativa they can actually finish in a reasonable season.

Genetics & Lineage

RS11 traces its genetics to RS11 (Blimburn Seeds). 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 Blimburn Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and euphoric 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 23%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

RS11 delivers THC levels of 20-25%, 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 RS11

RS11 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 10-12 weeks with yields of 400-500g/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

RS11 features a fruity, citrus, diesel, sweet 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, RS11 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 RS11?

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 RS11 from Seennabis?

When you purchase RS11 through Seennabis, you are buying directly from Blimburn Seeds — Barcelona-based breeder with one of the largest feminized + autoflower catalogs in Europe — over 1,200 strains spanning Spanish classics, exotic American hybrids (Banana Jelly x Permanent Marker, Skunk Berry, Glookies), and modern cookie/cake genetics. Every order includes verified genetics, discreet shipping, and responsive seller support.