Runtz x Chemdog 91 is Runtz crossed to Chem 91. Runtz is Zkittlez crossed to Gelato #33, and the plant that defined the modern candy category. Chem 91 is the SKVA cut, the original Chemdog '91 and the clone the whole Chem family is named after. Between them they cover ground neither reaches alone. 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.

91 identifies the Runtz x Chemdog used here. Numbered cuts come out of a population that was grown and sorted, and the number rides with the plant that was kept. Two crosses that both say Runtz x Chemdog are only the same cross if the number matches too.

Written this way, Runtz 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: Runtz. The candy plant the whole modern sweet-flavour category was built on. That one comes from Zkittlez x Gelato #33. Rated intermediate and sensitive to humidity swings and temperature stress - keep the room steady.
• 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.
• What the cross is reaching for. One side brings the structure and the other brings the nose. The plants worth keeping out of a pack are the ones that hold both rather than picking a side.

Flavor and Aroma Profile

The two halves stack rather than blend, which is the whole reason to run it.

• The Aroma. Sugary fruit and sour berry over vanilla cream, closing on peppery gas from the Runtz side, against pungent turned earth and diesel with pine and citrus sitting behind from the Chem 91 side.
• The Taste. Berry candy over cream, with a light gas edge up front, turning to greasy and mouth-coating - fuel, then earth and pine, sour at the finish through the exhale.

What each side brings

• Timing splits the pack. One parent wants eight to nine weeks, with fast plants at fifty-five to sixty days, the other sixty-three to seventy days. Expect the fast plants down well before the slow ones are ready.
• The smell is a negotiation. Sugary fruit and sour berry over creamy vanilla, closing on a peppery gas note on one side against pungent turned earth and diesel with pine and citrus behind it on the other. Neither wins outright in every seedling.
• Structure varies hard here. Manageable medium height with sturdy lateral branching; dense buds under a serious frost, deep greens and purples from one parent; loose and open rather than compact, moderate to heavy stretch, branches that soften under weight late from the other. Plan the canopy for the taller outcome.
• They pull differently. Growers put Runtz at balanced and even 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. Runtz is medium height and manageable, with sturdy side branching and dense frosted buds running deep green into purple. Chem 91 is open and loose rather than tight, stretching moderately to heavily, with branches that soften under weight late in flower.
• 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. Runtz runs eight to nine weeks, with fast plants at fifty-five to sixty days, 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 Runtz as balanced and even.
• 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. Their library is clones first and crosses second, which is why the names on their packs read like a list of plants rather than a list of products. Original Humboldt CSI stock.