Walk through most seed shops today and the regular section is the shelf at the back: shorter every year, marked cheaper than the feminized packs next to it, and picked up by a shrinking group of people who know exactly what they are after. It is tempting to see that as obsolescence. It is closer to the truth to see it as a library losing shelves while the bookshop next door expands. Every female-only line began as a regular one, each new cross needs a male somewhere in its history, and the diversity of cannabis genetics that exists at all exists only because someone kept regular seed. Dedicated sellers such as https://breederregularseeds.com carry lines going back to the 1980s, offered in packs of 10 seeds because a pack is meant to be a population, not a single plant. This article makes the case for that unfashionable pack: what the male is for, what a buyer loses by not growing one, and how to get value with a population instead of a copy.
The Other Half of the Genome
The easy account of a male cannabis plant is «a pollen source», and for a flower grower that is all it. To a breeder it is half the genome of every seed which follows, and half is selected with the same attention as the female.
A male contributes growth habit, hybrid vigour, maturation speed, tolerance to mould and pests, trichome production and the terpene profile just as the female does; it just expresses several of those traits less because it does not produce a smokable flower. Those who work with regular seed invest at least as much time choosing males as females, which is the work that a feminized cross borrows and can never repeat. Feminizing a female gives pollen; it does not provide a second line of selected genes.
How Diversity Leaks Away
A great deal of the feminized catalogue is built from S1 seeds: a single popular clone, reversed and pollinated with itself. Every generation of that selfing halves the remaining genetic variation, and after a couple of rounds what is left is essentially one plant repeated in marginally different ways.
That is fine for a consumer who wants that one plant. It is a loss for everyone who comes after. Recessive weaknesses surface: intersex tendencies, weak stems, susceptibility to a particular mould. Traits that were present in the original line but absent in the chosen clone disappear out of the gene pool altogether. A generation of such breeding leaves a market crowded with versions of the same few plants, and a breeder wanting to make something different finds there is nothing remaining to cross. Regular seed from an outcrossed line is the reservoir that refills the market, and it only persist if people grows it.
Selecting the Plant Nobody Writes About
Articles on selecting females are easy to find; advice on picking males is rare, since most growers never keep one past the first week of flower to judge. For a grower producing seed, these are the signs breeders watch for.
- Resin on the stem. Scratch a stem or a pollen sac and smell it. A male with trichomes on its flower parts and a clear aroma suggests it holds the resin genes that are worth passing on.
- Timing. A male that shows sex first and matures at the same pace as the females is far more useful than a very early one that sheds pollen before the female is receptive.
- Restraint. Males that dump huge quantities of pollen early are frequently the least selected genetically; many breeders favour steady shedders.
- Stability. Any male that at the same time forms female pistils under normal stress is discarded outright; the trait is the last thing anyone wants carrying forward.
- Structure. Short internodes, a strong main stem and a frame that matches the intended female shape are inherited; a stretched, weak-stemmed male passes that down too.
A Pack Is a Population
The mistake new regular-seed buyers fall into is seeing a pack as 10 attempts at the one plant. It is nothing of the kind. A pack from a real outcrossed line is a slice of a population, and the point of running it is to observe the range and select from it.
About half the plants will be male, which means a pack of 10 seeds gives around five females to evaluate and five males to discard or judge for breeding. Among the females, expect noticeable differences: height, flowering time, smell, density, resistance. 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 male now owns something a feminized pack can never offer: a pair of selected parents which are their own.
Three Ways to Cross
Holding selected parents is only worth something if making the next batch, and there the choices multiply. Three approaches cover most of what small-scale breeders do.
- Selected cross. One picked male on one or several picked females, every other plant else removed. The seeds inherit the qualities of the two selected plants and express less spread than the parent pack. Repeated over generations with consistent selection, this is how a new line is built.
- Open pollination. Allow each male pollinate each female. It preserves the whole range of the line, makes a generous volume of seed, and involves no selection at all. This is how traditional lines are maintained going, and it is the right method when the aim is preservation not improvement.
- Backcross. Take a chosen offspring back to one of its original parents to fix a specific trait. It tightens the genetics quickly and is useful when a single plant has something worth keeping and the other brought mostly vigour.
Each of these need nothing more than a isolated space for the male, a soft brush or a small bag, and a few weeks. None of them calls for the chemical treatment that feminized production requires.
Landraces and Heirloom Lines
A number of lines were never feminized and likely never will be: landraces collected from regions where cannabis grew over centuries, and heirloom hybrids from the first decades of modern breeding. They are sold as regular seed because the breeders maintaining them regard the population as the whole point, and selfing a single plant would erase exactly what makes the line worth preserving.
Growing a landrace from regular seed is a different experience from growing a commercial hybrid. There will be large variation, long flowering times in tropical lines, lanky plants, and traits that made sense in a field but not in a tent. Expect too flavours and effects that no longer appear in the commercial market at all. 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 grown out from the original collection.
When the Library Is the Wrong Shop
None of the above makes regular seed the best choice for everyone, and claiming otherwise does the product no favours.
A grower with space for three plants who wants every one of them to flower is better off with feminized seed. The same is a grower who cannot afford to inspect the plants every day around the start of flower, since a late male in a confined space ruins everything within days. A person growing a single autoflower on a balcony has no use from a pack they cannot select from. And anyone who wants a specific clone-only cut reproduced exactly is looking for a feminized S1, not a two-parent cross. Regular seed is for the grower who wants to choose, to keep and eventually to make something of their own; for everyone else the regular shelf is safely ignored alone.
Before You Buy
Breeder Regular Seeds sends each order in unmarked packaging with the original packs sealed inside and nothing on the exterior to indicate the contents. Orders to the United States are not accepted, because seed import 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 the two are permitted under local rules or neither is. Checking the rules where you live is the buyer’s responsibility, and no part of this article should be read as legal advice.