Old Red Sour

Old Red Sour is a sativa-leaning powerhouse (THC commonly between 15–25%) built from Sour Diesel IBL (Riri cut), Jamaican Blueberry and Afghan Red Khyber. Expect a bright, energetic high typical of classic sativas — long-lasting stimulation that suits daytime creative work, social activity or when you need a focused lift rather than sedation. The flavor profile lands on sharp citrus and sweet berry top notes with a sour, fuel-like backbone and earthy undertones, giving a complex, lively smoke that judges praised at the ICMAG Cup Barcelona 2018. For growers Old Red Sour is a moderate-difficulty photoperiod sativa that stretches and ultimately produces tall, heavily branched plants with high yields. Flowering finishes in around nine weeks under indoor conditions; plants tend to form dense, sticky buds despite the sativa-dominant genetics. Good structure from the Jamaican Blueberry x Red Khyber male helps create lots of lateral branching and makes canopy training rewarding — expect generous harvests if you manage stretch and support. Overall it’s a high-yielding, vigorous sativa for cultivators who want energetic effects and a memorable terpene mix.