Breeders Direct Seed Co.

Are you 21 or older?

Breeders Direct Seed Co. sells cannabis seeds and content intended for adults. Please verify your age.

  • ChemD x Chem 1 – Humboldt CSI

ChemD x Chem 1 sits between Chem D and Chem 91: the workhorse of the Chem family and the cut breeders reach for most on one side, the SKVA cut, the original Chemdog '91 and the clone the whole Chem family is named after on the other. CSI breed off held clones rather than off seed stock, which is why the parents named on the pack are the actual plants and not their descendants.

1 identifies the ChemD x Chem 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 ChemD x Chem are only the same cross if the number matches too.

Order matters in a cross name. In ChemD x Chem 1 the Chem D side supplied the seed and Chem 91 the pollen, and the reciprocal - the same two plants the other way round - is a separate breeding decision with its own results.

Genetic Lineage

  • Mother: Chem D. The most-used of the 1991 Chem phenotypes, and the one sitting behind Giesel. It traces back to another phenotype from the same 1991 seed lot. It is the Chem half of Giesel, and one of the most widely used Chem cuts in American breeding.
  • Father: Chem 91. The plant the Chem name was built on, known equally as Chem 91 and the SKVA cut. Parentage: 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.
  • How to read it. Everything below splits into what one parent gives and what the other does. Plants that take from both are the ones to keep.

Flavor and Aroma Profile

Two profiles that stay distinguishable rather than collapsing into one.

  • The Aroma. Chemical fuel over dark turned earth from the Chem D side, against heavy diesel and soil with a thin pine and citrus line at the back from the Chem 91 side.
  • The Taste. Fuel and earth, greasy and coating, finishing sour up front, turning to fuel first, earth and pine behind it, sour to close, and it coats the mouth through the exhale.

Where the parents disagree

  • Timing. Chem 91 runs sixty-three to seventy days, and that is the half of this cross you can actually plan around.
  • Two noses, one pack. Chem D contributes chemical fuel over dark turned earth. Chem 91 contributes pungent turned earth and diesel with pine and citrus behind it. Which dominates is the main thing that varies.
  • Structure varies hard here. Open and loose rather than compact, wants support once the colas load 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 Chem D at alert and head-forward rather than heavy 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. Chem D is a sprawler that needs propping once weight goes on the branches. Chem 91 is open and loose rather than tight, stretching moderately to heavily, with branches that soften under weight late in flower.
  • 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 Chem D as alert and head-forward rather than heavy.
  • 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. Authentic Humboldt CSI genetics.

Write a review

Please login or register to review

ChemD x Chem 1 – Humboldt CSI

  • $100.00


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