Browse through most seed shops today and the regular section is the shelf at the back: shorter every year, marked lower than the feminized packs next to it, and bought by a dwindling number of people who know exactly what they are looking for. It is tempting to see that as the end of a technology. It is nearer to the truth to read it as a library losing shelves while the bookshop next door grows. Every female-only line started as a regular one, each new cross requires a male at some point in its history, and the breadth of cannabis genetics that exists at all exists because somebody kept regular seed. Dedicated sellers such as https://breederregularseeds.com stock lines going back to the 1980s, sold in packs of 10 seeds because a pack is meant to be a population, not a one plant. This article makes the case for that half-male pack: what the male contributes, what a buyer loses by not seeing one, and how to get value with a population instead of a clone.
The Other Half of the Genome
The lazy description of a male cannabis plant is “the one that makes pollen”, and for a flower grower that is all it. To a breeder it is half the genome of every seed which follows, and that half is chosen with the same attention as the mother.
A male passes on structure, hybrid vigour, maturation time, tolerance to mould and pests, resin density and the aromatic profile exactly as the female does; it just expresses some of those qualities less visibly since it does not produce a smokable flower. Those who breed with regular seed spend at least as much time choosing males as females, which is the effort that a feminized line borrows and cannot repeat. Reversing a female yields pollen; it cannot provide a second line of selected genes.
How Diversity Leaks Away
Much of the feminized catalogue is made from S1 seeds: a single popular clone, treated and crossed with itself. Each generation of that process cuts in half the surviving genetic variation, and after a couple of rounds what is left is essentially one plant expressed across marginally different forms.
This is acceptable for a grower who wants that single plant. It is a loss for everyone who comes after. Recessive weaknesses surface: hermaphrodite tendencies, weak stems, sensitivity to one particular mould. Traits that were present in the original line but absent in the selected clone vanish from the gene pool entirely. A decade of such breeding produces a market crowded with variations of the same few clones, and a breeder wanting to create something new finds there is little remaining to cross. Regular seed from an outcrossed line is the reservoir that refills the market, and that reservoir only persist if somebody keep growing it.
How to Judge a Male
Guides on selecting females are easy to find; advice on choosing males is rare, since most people do not keep one long enough to look. For a grower making seed, these are the marks breeders look for.
- Resin on the stem. Scratch a stem or a flower cluster and smell it. A male with trichomes on its sepals and a clear scent suggests it holds the resin genes that are worth keeping.
- Timing. A male that declares sex first and flowers at the same pace as the females is more workable than an early one that releases pollen before any female is ready.
- Stability. Any male that at the same time shows female flowers under normal conditions is rejected without exception; that trait is the last thing worth carrying into a line.
- Structure. Short internodes, a strong main stem and branching that matches the desired female shape are passed on; a lanky, weak-stemmed male passes that on too.
A Pack Is a Population
A error new regular-seed buyers fall into is treating a pack as 10 attempts at the one plant. It is the opposite. A pack from a genuine outcrossed line is a sample of a population, and the value of running it is to see the spread and choose from it.
About half the plants will be male, which means a pack of 10 seeds gives something like five females to evaluate and five males to cull or judge for breeding. Among the females, look for real variation: stature, finishing time, aroma, density, tolerance. This variation is not a flaw in the seed; it is what the seed is for. The grower who takes cuttings from the best female and the best male has something a feminized pack can never supply: a line of chosen parents which are theirs.
Three Ways to Cross
Holding chosen parents means producing the next generation, and there the choices multiply. The main methods cover most of what small-scale breeders do.
- Open pollination. Let each male pollinate each female. It keeps the whole diversity of the line, makes a generous volume of seed, and does no selection at all. This is how traditional lines are kept going, and it is the right method when the goal is preservation not refinement.
- Backcross. Cross a selected seedling back to one of its parents to lock in a specific trait. It tightens the range quickly and is used when one parent shows something worth keeping and the other brought mainly vigour.
- Selected cross. One picked male to one or several chosen females, every other plant else culled. The offspring carry the traits of two specific plants and show narrower variation than the original pack. Repeated over generations with stable selection, this is how a new line is made.
All three need nothing more than a isolated space for the male, a soft brush or a small bag, and a few weeks. Not one of them calls for the chemical reversal that feminized seed-making requires.
The Seeds That Only Exist as Regulars
Some lines have never feminized and likely never will be: landraces gathered from regions where cannabis grew for centuries, and old hybrids from the first decades of modern breeding. They are sold as regular seed since the breeders maintaining them regard diversity as the entire value, and selfing a single clone would destroy precisely what makes the line worth keeping.
Running a landrace from regular seed is a different experience from running a commercial hybrid. There will be wide variation, extended flowering periods in equatorial lines, lanky plants, and traits that made sense in a mountain valley but not in a small room. Expect too flavours and chemistry that do not appear in the commercial market anywhere. Breeder Regular Seeds holds a dedicated landrace and heirloom section, with each line marked with its origin of collection and the number of generations it has been reproduced since the first collection.
The Honest Exclusions
None of the above turns regular seed into the right option for everyone, and pretending otherwise does the product no service.
A grower with space for a handful of plants who wants every one of them to flower is better served with feminized seed. The same is a grower who cannot afford to check the plants every day around the onset of flower, since a late male in a confined space ruins the whole crop inside days. A person growing a single autoflower on a balcony has no value from a pack they cannot select from. And anyone who is after a specific famous cut reproduced exactly is looking for a feminized S1, not a two-parent cross. Regular seed is for the grower who intends to choose, to keep and at some point to produce something new; for everyone else the back shelf is best ignored where it is.
Practicalities
Breeder Regular Seeds sends each order in plain parcels with the original packs intact inside and nothing on the outside to indicate the contents. Orders to the United States are not taken, as seed importation is restricted there. Seed law varies widely by country: in many places owning seeds is legal as genetic preservation while germinating them is not, and in others both are allowed under local rules or neither is. Checking the rules where you live is the buyer’s job, and nothing of this article is legal advice.
