Take UK Cheese, the Exodus clone - one Skunk #1 plant found in Britain around 1990 and never let go of, 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 Uk Cheese x Chem 1. Every parent CSI use is a cut they keep alive themselves, so nothing in this pack is a reconstruction of a famous name.

The number in Uk Cheese x Chem 1 is a specific plant, not a decoration. Humboldt CSI grow a population out, keep the individuals worth keeping and number them, so Uk Cheese x Chem 1 is one identified selection rather than Uk Cheese x Chem in general. A pack naming a different number is a different mother.

Written this way, UK Cheese is the mother and Chem 91 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: UK Cheese. A single Skunk #1 keeper out of Britain, kept as a cutting for three decades. That one comes from a Skunk #1 phenotype, not a cross. Famously forgiving and often recommended to beginners; spread by the Exodus Collective.
• Father: Chem 91. The plant the Chem name was built on, known equally as Chem 91 and the SKVA cut. It traces back to 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.
• Why it is worth a pack rather than a look. The two sides are far enough apart that seedlings genuinely differ. That range is the product.

Flavor and Aroma Profile

Two profiles that stay distinguishable rather than collapsing into one.

• The Aroma. The unmistakable sour dairy funk from the UK Cheese side, against pungent turned earth and diesel with pine and citrus behind it from the Chem 91 side.
• The Taste. Sour and cheesy with skunk underneath, finishing earthy and lingering up front, turning to fuel first, earth and pine behind it, sour to close, and it coats the mouth through the exhale.

The two halves, side by side

• They are not on the same clock. UK Cheese runs seven to nine weeks depending on source; Chem 91 runs sixty-three to seventy days. Across a pack that gap shows up as plants finishing days or weeks apart.
• Two noses, one pack. UK Cheese contributes tangy cheddar over earthy, skunky sweetness, loud enough to fill a house. Chem 91 contributes pungent turned earth and diesel with pine and citrus behind it. Which dominates is the main thing that varies.
• Two frames in one pack. UK Cheese is slender, vine-like branches carrying spear-shaped colas with big swollen calyxes under a dense sticky trichome coat; grows with real vigour despite leaning indica. 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 UK Cheese at balanced and sociable; slight indica weight 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. UK Cheese is a spreading plant that wants support. Chem 91 is loose and open rather than compact, moderate to heavy stretch, branches that soften under weight late.
• Vegetative Phase and Stretch. Shape the plant before the flip. Correcting a frame in week six is harder work than setting it in week two.
• Flowering Time. The parents are not on the same clock. UK Cheese runs seven to nine weeks depending on source, Chem 91 sixty-three to seventy days. Judge each plant on trichomes rather than pulling the room together.

Effects and Experience

• The Mind. Growers describe UK Cheese as balanced and sociable; slight indica weight.
• 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

Feminized seeds from Humboldt CSI. Humboldt CSI are preservationists before they are breeders - most of what they release is a clone somebody has kept alive by hand for years, put into seed so it stops depending on one grower staying in the game. That is what you are buying into here. Sold as authentic Humboldt CSI.