Genetics 101: What Makes a Strain a Strain?
Whether you’re a seasoned grower or just stepping into the world of cannabis cultivation, you’ve probably heard the word “strain” thrown around a lot. But what actually makes a strain a strain? Why is Black Orchid Auto different from Bruce Banner #3, and how do breeders like Original Sensible Seeds create new varieties?
Let’s break it down in this quick-hit guide to cannabis genetics.
What Is a Strain?
A strain is a unique genetic expression of the cannabis plant. Think of it like a breed of dog—Labradors and Chihuahuas are both dogs, but they’ve been selectively bred over generations to emphasize different traits.
In cannabis, those traits might include:
- Aroma & Flavor (terpenes)
- Effect (THC/CBD ratio)
- Appearance (color, size, shape)
- Growth behavior (flowering time, height, yield, resistance)
These combinations of traits, passed down from parent plants, are what define a strain’s identity.
The Basics of Cannabis Genetics
Every cannabis plant has a genetic code—just like humans—that determines how it grows and what it produces. This code is inherited from its parent strains. Breeders cross two plants with desirable traits to produce seeds that carry those traits forward.
There are three main categories of strains:
- Indica-dominant: Often shorter, bushier, and known for relaxing effects.
- Sativa-dominant: Taller plants with energizing, cerebral highs.
- Hybrids: A blend of both, offering a wide range of possibilities.
Phenotypes vs. Genotypes
A strain’s genotype is its full genetic blueprint—but what you see and experience is called its phenotype. That’s the physical expression of the plant’s genes, influenced by growing conditions like light, nutrients, and temperature.
That’s why two seeds from the same strain can look slightly different—they’re siblings, not clones. Just like two kids from the same parents might have different eye colors or personalities.
Stabilizing a Strain
Creating a new strain isn’t just crossing two plants and calling it a day. Stabilization is the process of breeding over multiple generations to ensure consistent traits.
At Original Sensible Seeds, we put years of work into our genetics to ensure each strain you grow—from Runtz Auto to Purple Ghost Candy—delivers reliable, repeatable results.
Feminised, Auto, and Regular Seeds: What’s the Difference?
- Feminised Seeds: Bred to produce only female plants, which are the ones that produce buds.
- Autoflowering Seeds: These switch to flowering automatically after a certain time—no need to change the light cycle.
- Regular Seeds: A mix of male and female plants, often used by breeders for creating new genetics.
Each type offers different advantages depending on your growing style and goals.
Why Genetics Matter
Good genetics are the foundation of a successful grow. They influence everything—how your plants handle stress, how quickly they flower, how much they yield, and what kind of high they deliver.
At Original Sensible Seeds, we don’t just sell seeds—we craft living blueprints for outstanding cannabis. Our breeders work with top-tier genetics to ensure every strain in our catalogue is powerful, productive, and packed with flavor.
Final Thoughts: It All Starts with the Seed
Strains are more than just names—they’re stories written in DNA. Whether you’re growing for flavor, potency, or medicinal value, starting with strong, well-bred genetics gives you the best chance of success.
So next time you browse our catalogue, know that behind every strain is a legacy of expert selection, passion for the plant, and a whole lot of science.
Ready to find your perfect strain?
👉 Explore our full range at Original Sensible Seeds