Klementine S1

Klementine S1 is a standout strain in the catalog of R-Kiem Seeds, defined by its explosive citrus profile, abundant resin production, and an active, long-lasting effect that places it among the most complete genetics in the lineup. Developed as an S1 from an elite-selected clone, it delivers a level of uniformity and stability that is rarely found in standard seed versions. Genetics and origin: the best of both worldsKlementine S1 is the self-pollination (S1) of an elite clone derived from the original cross Tangerine Sunrise × Gupta Kush, developed by R-Kiem Seeds. Tangerine Sunrise brings a refined citrus-forward foundation, while Gupta Kush—descending from Ghost OG—adds aromatic depth, body to the effect, and a subtle indica influence that balances the profile. The result is a sativa-dominant variety with up to 25% THC, powerful, expressive, and highly distinctive. Cultivation: sativa vigor and premium yieldsIndoors, Klementine S1 finishes flowering in 58–65 days (8–9 weeks) and can reach up to 650 g/m² under optimal conditions. It grows with vigorous, open branching typical of sativa structures and shows a pronounced stretch early in flowering, making training techniques like SCROG or bending highly recommended. It responds very well to these methods, and its excellent calyx-to-leaf ratio combined with dense trichome coverage also makes it a strong candidate for resin extractions. Outdoors, harvest is typically ready by mid-October in the northern hemisphere. The plant adapts easily to different substrates and cultivation systems, with a medium difficulty level that suits growers with some experience. Support stakes are recommended, as lateral branches may require reinforcement during the final flowering stage due to heavy bud weight. Aromas, flavors, and effects: intense citrus and mental clarityKlementine’s aromatic profile is its defining feature. Bright orange and tangerine notes dominate immediately, followed by sweet citrus layers with subtle Haze underto