Autoflower
Sour P 21
Sour P 21 is a autoflowering hybrid strain with diesel flavors, known for happy, relaxed effects.
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Sour P 21 Strain Overview
Sour P 21 is a autoflowering evenly balanced hybrid (50% indica/50% sativa) strain with a character all of its own. This infamous bud boasts a THC level that ranges from 22-28% on average, with 0.8% CBD. It is sold as autoflower seeds, and it remains one of the most requested cuts in its class year after year.
Users describe the Sour P 21 high as a true two-sided experience — an energizing cerebral lift arrives first, sliding gradually into a mellow body calm that relaxes without switching you off completely. The handoff between head and body is seamless, making it easy to dose for either a productive afternoon or a slow evening. These combined effects make Sour P 21 a frequent pick among patients dealing with chronic stress, muscle tension and mild to moderate depression, and a reliable standby for anyone medicating on a schedule.
On the palate, expect diesel up front, backed by an aroma that fills the room the moment the jar opens. The smoke is smooth on the inhale with a diesel finish that builds the longer the session runs. This bud has long tapered spade-shaped dense green nugs with rich blue-purple undertones, fiery orange hairs and a thick coat of frosty crystal trichomes.
For growers, Sour P 21 offers an easy, forgiving grow that suits first-time cultivators — expect plants finishing in as little as 8-9 weeks from germination, at home indoors or outdoors. It shrugs off common beginner mistakes, and yields stay respectable even when conditions are less than perfect. Plants stretch to a medium height with strong side branching, equally at home in a tent or a garden bed. Its genetics run through the wider Sour family — see Sour Time and Sour Tooth for close relatives worth comparing before you buy.