The shortest version: Seedsman's take on hybrid genetics, 18-25% THC, 8-10 weeks flowering, moderate grow.

Lineage: Grandpa's Cookies R2 V1 traces back through Seedsman's in-house breeding program, stacking cookie-family genetics into a feminized format that cuts out the guesswork on sexing your crop. THC tests land between 18–25%, which puts it solidly in the upper-mid range without veering into the anxiety-inducing territory some high-THC lines can hit. Flavors stay true to the name — sweet up front, with a grounding earthiness on the exhale that doesn't need any embellishment.

Indoors, expect 500–650g/m² after an 8–10 week flower cycle, which is a realistic haul for growers willing to dial in their VPD and not rush the flush. The moderate difficulty rating means first-timers won't be completely lost, but you'll get more out of this one if you've run a cookie-type cultivar before and know how to read the leaf curl. Works in both indoor and outdoor setups.

Best suited to growers who want consistent, heavy yields without chasing novelty THC numbers.

Genetics & Lineage

Grandpa's Cookies R2 V1 traces its genetics to Grandpa's Cookies R2 V1 (Seedsman genetics). 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 Seedsman, 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 25%, this is a potent strain recommended for experienced users — newcomers should start low and go slow.

THC Level & Potency

Grandpa's Cookies R2 V1 delivers THC levels of 18-25%, 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 with a balanced head-and-body experience that evolves over time.

Growing Grandpa's Cookies R2 V1

Grandpa's Cookies R2 V1 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 8-10 weeks with yields of 500-650g/m². Plants typically reach 100-170cm 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

Grandpa's Cookies R2 V1 features a sweet, earthy 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, Grandpa's Cookies R2 V1 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 Grandpa's Cookies R2 V1?

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 Grandpa's Cookies R2 V1 from Seennabis?

When you purchase Grandpa's Cookies R2 V1 through Seennabis, you are buying directly from Seedsman — One of the world's largest cannabis seed catalogs, carrying 4,000+ strains from 100+ breeders since 2003. Every order includes verified genetics, discreet shipping, and responsive seller support. Seedsman has completed over 185 sales.