There are two very different things inside Sour P (Sour Diesel x HP13). Sour Diesel, the East Coast benchmark for aggressive chemical fuel. And HP13: Hash Plant 13, an heirloom clone passed by hand for decades. Humboldt CSI work almost entirely from clones they hold themselves, so both sides of this are the real thing rather than a seed-line approximation of it.

Written this way, Sour Diesel is the mother and HP13 the pollen donor. Reversing a cross is not a formality; which plant carries the seed shapes what comes out of the pack.

Genetic Lineage

• Mother: Sour Diesel. The East Coast benchmark for aggressive chemical fuel. Parentage: most likely Chemdog 91 crossed to a Super Skunk in 1990s New York.
• Father: HP13. Hash Plant 13, an heirloom clone passed by hand for decades. Tight buds hold moisture longer than they look like they should.
• The point of the pairing. Neither parent needed rescuing. Putting them together is about what sits between them, not about fixing either one.

Flavor and Aroma Profile

Expect the profile to move plant to plant rather than settle.

• The Aroma. Aggressively chemical and pungent with greasy resin from the Sour Diesel side, against sharp pine and deep spice with a herbal finish from the HP13 side.
• The Taste. Solvent and sour, greasy up front, turning to earthy and hash-like with pine and spice stacked through it through the exhale.

What each side brings

• They are not on the same clock. Sour Diesel runs ten to eleven weeks, with faster plants nearer sixty-seven days; HP13 runs fifty-six to seventy days. Across a pack that gap shows up as plants finishing days or weeks apart.
• The smell is a negotiation. Aggressively chemical and pungent with greasy resin on one side against sharp pine and deep spice with a herbal finish on the other. Neither wins outright in every seedling.
• Two frames in one pack. Sour Diesel is tall and lanky with wide internodal spacing, heavy early stretch, rated moderately challenging. HP13 is compact with dense, tight flower; deep green with purple where run cool. Decide which suits your room before you flip, because you get both.
• Opposite ends. Sour Diesel is reported as head-forward and energetic; HP13 as settled and slow; heavy and physical. The cross sits somewhere between and moves plant to plant.

Cultivation and Growth Traits

• Plant Structure. The two parents disagree here, so plan for range. Sour Diesel is tall and lanky with wide internodal spacing, heavy early stretch, rated moderately challenging. HP13 is compact with dense, tight flower; deep green with purple where run cool.
• Training. Worth the effort early - it is the difference between an even canopy and three colas and a lot of leaf.
• Flowering Time. The parents are not on the same clock. Sour Diesel runs ten to eleven weeks, with faster plants nearer sixty-seven days, HP13 fifty-six to seventy days. Judge each plant on trichomes rather than pulling the room together.

Effects and Experience

• The Mind. Growers describe Sour Diesel as head-forward and energetic.
• The Body. HP13 is reported as settled and slow; heavy and physical, and that is the side supplying the weight here.

In the pack

7 feminized seeds per pack. Feminized seeds from Humboldt CSI. What they sell is preservation work: old clones reversed into seed so the line survives past whoever is currently keeping it alive. Real Humboldt CSI stock, not a copy.