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What Makes a Good Breeder? Lessons from The Wrank & Zkittlez

Understanding How Breeding Selections Are Made
By Colin Gordon & Ben Owens

Selecting a cut for breeding is often different than selecting for production; sometimes they align, and it breeds the expressions that you see as the grower. The way a plant breeds will be different than how it expresses in the grow. It’s about what traits come through and how often.

Growers typically select standout plants. They look for what performs best on its own: loud terps, striking bag appeal, tight internodal spacing, resistance to stress, and impressive vigor. And while these traits may be ideal in the grow room, they don’t always translate into strong breeding potential. Particularly in terpenes, it’s the most obvious. You can have a variety with a great flavor but it doesn’t breed that way; it’s not consistent. That also directly correlates to the effects. 

The most desirable traits in a plant don’t necessarily breed in a dominant fashion. What I look for in a breeder is the consistency of particular expressions that comes from it. In the cannabis world there are going to be different categories of those expressions and rarely to they all align. 

Breeding is particularly about identifying complementary plants that work well together, not just the unicorns that stand alone. It’s about identifying which plants work well as tools, as the genetic contributors of strengths like morphology, yield, or terpene profile when paired intentionally with a complementary partner.

Put simply: a “breeder’s cut” may not be a “grower’s cut.” And that’s by design.

To make this a bit easier to understand, let’s look at the thought process behind All The Sauces (The Wrank × Zkittlez).


Selecting for Synergy: Wrank and Zkittlez as Breeding Tools

The Wrank: Structure, Sexual Stability, and Production Traits

The Wrank isn’t flashy. But as a breeding tool, it checks boxes few plants do: [Image of Wrank]

  • Sexual Stability Across Lineages
    Perhaps most impressively, The Wrank has shown no signs of hermaphroditism across its S1s and outcrosses. That kind of reliability creates an entire branch of breeding opportunities that would otherwise be closed off due to instability.
  • Morphological Predictability
    The Wrank’s structural expression is both desirable and predictable: her morphology breeding is recessive with tall plants and dominant with short plants. When crossed with taller varieties, it tends to pass on that height. When bred to shorter plants, the compact form tends to dominate. That makes it useful for tuning canopy height and form depending on the desired pairing.
  • Commercial-Grade Yield and Efficiency
    The Wrank grows in a clean, gridded pattern that is ideal for high-density production. Its flower morphology is high bract-to-leaf, which means less trimming labor and more usable biomass, which can have a major impact on efficiencies when scaled.
  • Depth of Canopy
    The Wrank produces quality flower throughout the plant, not just on the tops. From a production perspective, that means better grams per square meter and less larf to process or toss.

Zkittlez: Terpene Enhancement and Subjective Effects

Zkittlez brings a very different skillset to the table—traits that can’t be manufactured through structure alone:

  • Terpene Enhancement
    Zkittlez doesn’t just taste great, it generally improves the terp expression of the plants it’s paired with. Z tends to act as a flavor enhancer, making hybrid offspring louder and more complex, even when paired with unrelated lines. It brings its own terps while seeming to enhance and complement other terps that it is crossed with.
  • Subjective High
    The stoney high of Z has proven to be a powerful and repeatable effect among filial generations. Many Z hybrids are notably heady, with resinous flowers that produce unique psychoactivity.
  • Expressive Range
    While most associate Z with its fruity, sweet-forward profile, crosses have revealed surprising earthiness and acrid profiles, too. That range gives breeders flexibility without losing the Z fingerprint.
  • Standalone Limitations
    Zkittlez doesn’t always impress in isolation. It tends to produce darker, leafy, lower density, less visually appealing flowers with average bag appeal. But when paired well, it shines. For breeding, it does especially well when paired with something that compensates for structure and vigor.

Why This Cross Works: All The Sauces

The goal with All The Sauces (The Wrank × Zkittlez) was not to stack standout traits. It was to create a pairing where each parent brings what the other lacks.

Wrank brought structure, yield, and production efficiency. Z brought terpene depth and heady, resinous effects.

In trial runs, certain phenos of All The Sauces didn’t lead the pack in week 6 of flower. But by week 9, they had pulled ahead with prettier flowers, stronger aroma, better resin, and overall superior results in second-round tests. That matters.

What you’re seeing is how the pairing plays out over time. These are tools coming together to produce something that neither parent could offer on its own.


Breeding Traits to Evaluate

When selecting for breeding, the following traits tend to matter most:

Trait CategoryThe WrankZkittlez
StabilityExtremely stable, no herms across S1s/crossesModerate; can pass instability if not selected carefully
MorphologyClean grid structure, desirable spacingCompact, sometimes inconsistent
Height ControlHeight is responsive—dominant or recessive, depending on the partnerGenerally shorter stature
Flower MorphologyHigh bract-to-leaf, easy trimLeafier buds, harder to trim
Yield PotentialHigh yield, dense lower canopyModerate yield, top-heavy
Terpene ProfileModerate, clean aromaLoud, fruit-forward with an enhancer effect
Effect/StoneBalanced, functionalStoney, resonant, notable psychoactivity
Breeding UtilityHigh for production hybridsHigh for flavor/effect enhancement

Breeders Are Looking for Tools

Not everything that looks good in flower will breed well. And not everything that breeds well will look good in flower. You’ve got to run them to know. 

You have to cross it with several varieties and run the seeds and find out. As a breeder, an S1 will give you lots of information on where that variety wants to go. 

In the case of All The Sauces, Wrank and Zkittlez improved upon each other, offering a hybrid that married vigor, efficiency, and complexity in a way their parents could not.

That’s the difference between selecting for production and selecting for breeding.

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