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  • Giesel x Chem 91 – Humboldt CSI

Take Giesel, the Massachusetts heirloom CSI describe as often imitated and never duplicated, and put it over Chem 91, the SKVA cut, the original Chemdog '91 and the clone the whole Chem family is named after. That is Giesel x Chem 91. These are held cuts, not recreations. CSI's entire catalogue works that way, and it is the reason their crosses are worth chasing.

The number in Giesel x Chem 91 is a specific plant, not a decoration. Humboldt CSI grow a population out, keep the individuals worth keeping and number them, so Giesel x Chem 91 is one identified selection rather than Giesel x Chem in general. A pack naming a different number is a different mother.

Giesel sits on the seed side here, Chem 91 on the pollen side. If you have seen these two names paired the other way round, that is a different pack and not this one.

Genetic Lineage

  • Mother: Giesel. The Massachusetts heirloom CSI describe as often imitated and never duplicated. It traces back to Chem D over a Massachusetts Super Skunk line.
  • Father: Chem 91. The SKVA cut, the original Chemdog '91 and the clone the whole Chem family is named after. Given as one of thirteen seeds from a bag bought at a Grateful Dead show in 1991. Skunk VA was given a cut in 1995 and has held it since, which is why the line survives.
  • 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

Neither parent is subtle, and the cross has nowhere quiet to go.

  • The Aroma. Sharp chemical fuel over black pepper and skunky earth with a bright lemon-lime edge, and a buttery skunk note that is savoury rather than roadkill from the Giesel side, against pungent turned earth and diesel with pine and citrus behind it from the Chem 91 side.
  • The Taste. Clean chem-fuel bite then peppered citrus and sweet earth, mouth-coating up front, turning to greasy and mouth-coating - fuel, then earth and pine, sour at the finish through the exhale.

What each side brings

  • What to budget. The documented side, Chem 91, runs sixty-three to seventy days. Set the room to that and let the plants correct you.
  • The smell is a negotiation. Sharp chemical fuel over black pepper and skunky earth with a bright lemon-lime edge, and a buttery skunk note that is savoury rather than roadkill on one side against pungent turned earth and diesel with pine and citrus behind it on the other. Neither wins outright in every seedling.
  • Two frames in one pack. Giesel is can run very lanky but also throws short, squat offspring depending on expression; stretch 1.5 to 2 times over the first three weeks; semi-upright with big swollen bracts on spear-shaped colas; responds well to topping and wants airflow. Chem 91 is loose and open rather than compact, moderate to heavy stretch, branches that soften under weight late. Decide which suits your room before you flip, because you get both.
  • They pull differently. Growers put Giesel at balanced and Chem 91 at alert and head-forward, sativa-leaning rather than heavy. Which end a plant lands on is the main variable.

Cultivation and Growth Traits

  • Plant Structure. The two parents disagree here, so plan for range. Giesel is can run very lanky but also throws short, squat offspring depending on expression; stretch 1.5 to 2 times over the first three weeks; semi-upright with big swollen bracts on spear-shaped colas; responds well to topping and wants airflow. Chem 91 is a loose, stretchy plant whose branches give way under late weight.
  • Training. Worth the effort early - it is the difference between an even canopy and three colas and a lot of leaf.
  • Flowering Time. Chem 91 runs sixty-three to seventy days. Start checking trichomes a week before you expect to be ready.

Effects and Experience

  • The Mind. Growers describe Giesel as balanced.
  • The Body. Chem 91 is reported as alert and head-forward, sativa-leaning rather than heavy, and that is the side supplying the weight here.

In the pack

7 feminized seeds per pack. Feminized seeds from Humboldt CSI. CSI work from clone stock they have kept for years and reverse it into seed, so what arrives in a pack is the real cut's genetics rather than a seed-line approximation of it. Humboldt CSI original genetics.

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Giesel x Chem 91 – Humboldt CSI

  • $120.00


Tags: cannabis seeds, feminized seeds, Humboldt CSI, CSI Humboldt, Giesel, Chem 91, strain guide