Walk through most seed shops today and the regular section is the shelf at the back: smaller every year, priced cheaper than the feminized packs next to it, and picked up by a shrinking group of people who understand exactly what they are after. It is easy to see that as the end of a technology. It is closer to the truth to read it as a library losing shelves while the bookshop next door expands. Every female-only line started as a regular one, each new cross needs a male somewhere in its pedigree, and the diversity of cannabis genetics that exists at all exists only because somebody kept regular seed. Specialists 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 single plant. This article sets out the case for that unfashionable pack: what the male is for, what a grower gives up by not seeing one, and how to work with a population rather than a copy.
The Other Half of the Genome
The lazy account of a male cannabis plant is “a pollen source”, and for a flower grower that is the whole of it. For a breeder it is half the genome of every seed that follows, and half is chosen with the same care as the mother.
A male passes on structure, vigour, flowering speed, tolerance to mould and pests, resin production and the aromatic profile exactly as the female does; it just expresses several of those qualities less visibly because it never produce a finished flower. Breeders who breed with regular seed invest as much time selecting males as females, which is the work that a feminized line borrows and can never repeat. Feminizing a female gives pollen; it cannot provide a different set of selected genes.
The Narrowing
Much of the feminized catalogue is built from S1 seeds: a one popular clone, treated and crossed with itself. Every generation of that process cuts in half the surviving genetic variation, and after two generations what is left is close to one plant expressed across slightly different forms.
That is fine for a grower who wants that one plant. It is a problem for everyone who comes after. Recessive weaknesses surface: intersex tendencies, weak stems, sensitivity to one particular mould. Qualities that existed in the original line but absent in the chosen clone vanish out of the gene pool altogether. A decade of such breeding produces a market full with variations of the same few clones, and a breeder wanting to create something new discovers there is nothing remaining to cross. Regular seed from a true outcrossed line is the reservoir that replenishes the market, and it only exists as long as somebody keep growing it.
Reading a Male Plant
Articles on choosing females are easy to find; guidance on picking males is scarce, since most people never keep one past the first week of flower to look. For anyone producing seed, these are the signs breeders watch for.
- Stability. Any male that also forms female flowers under normal conditions is discarded outright; the trait is the last thing worth breeding into a line.
- Resin on the stem. Scratch a stem or a pollen sac and smell it. A male with resin on its sepals and a strong aroma suggests it holds the resin genes that are worth passing on.
- Structure. Tight internodes, a thick central stem and branching that matches the intended female habit are inherited; a lanky, floppy male passes that down too.
- Timing. A male that declares sex first and matures in step with the females is far more workable than an early one that releases pollen before any female is ready.
Thinking in Numbers
A error first-time regular-seed growers make is seeing a pack as 10 chances at the same plant. It is the opposite. A pack from a real outcrossed line is a sample of a population, and the value of growing it is to observe the spread and choose from it.
Roughly half the plants will be male, so a pack of 10 seeds yields around five females to evaluate and five males to cull or assess for breeding. Among the females, expect real variation: stature, flowering time, smell, density, resistance. That variation is not a failure in the seed; it is what the seed is selling. The grower who keeps the strongest female and the best male now owns something a feminized pack cannot offer: a line of selected parents that are theirs.
Three Ways to Cross
Owning selected parents is only worth something if making the next generation, and here the choices open up. Three methods account for most of what small-scale breeders attempt.
- Backcross. Take a chosen offspring back to one of its parents to fix a particular quality. It tightens the genetics fast and is used when a single parent shows something worth concentrating and the other brought mostly vigour.
- Selected cross. One picked male to one or several chosen females, every other plant else culled. The seeds carry the qualities of two selected plants and show narrower variation than the original pack. Repeated over several rounds with consistent selection, this is how a new line is made.
- Open pollination. Let every male pollinate every female. It preserves the full diversity of the line, makes a generous quantity of seed, and does no choosing at all. This is how traditional lines are kept alive, and it is the correct method when the goal is preservation not refinement.
Each of these require nothing more than a isolated space for the male, a paintbrush or a paper bag, and patience. Not one of them calls for the chemical reversal that feminized seed-making requires.
Landraces and Heirloom Lines
A number of lines were never feminized and likely never will be: landraces collected from regions where cannabis was grown over centuries, and old hybrids from the first decades of indoor breeding. They are available as regular seed since the breeders maintaining them treat diversity as the entire point, and reversing a single clone would destroy exactly what makes the line worth the trouble of preserving.
Growing a landrace from regular seed is different from growing a modern hybrid. There will be large variation, long flowering times in tropical lines, lanky plants, and qualities that made sense in a mountain valley but not under a tent. There will be too aromas and chemistry that no longer appear in the commercial market anywhere. Breeder Regular Seeds holds a separate landrace and heirloom section, and each line marked with its region 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 best choice for everyone, and pretending that it is does the category no favours.
A grower with room for a handful of plants who needs every one of them to finish is better served with feminized seed. The same is anyone unable to check the plants each day around the onset of flower, since a missed male in a confined space seeds the whole crop within days. A person growing a single autoflower on a balcony gets no use from a pack they cannot choose from. And a buyer who wants a known famous cut repeated as closely as possible is looking for a feminized S1, not a two-parent cross. Regular seed is for the grower who intends to choose, to hold onto and eventually to produce something new; for anyone else the regular shelf is safely left alone.
Practicalities
Breeder Regular Seeds dispatches every order in plain parcels with the breeder’s packs sealed inside and nothing on the exterior to indicate the contents. Orders to the United States are not accepted, as seed importation is restricted there. Seed law differs widely by country: in many places owning seeds is legal as genetic preservation while germinating them is not, and in others the two are permitted under local rules or both is. Checking the rules where you live is the buyer’s job, and nothing of this article should be read as legal advice.