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 beside it, and picked up by a shrinking number of people who understand exactly what they are after. It is easy to see that as obsolescence. It is closer to the truth to see it as a library losing shelves while the paperback rack next door grows. Every female-only line started as a regular one, every new cross needs a male at some point in its history, and the diversity of cannabis genetics that exists at all exists because someone held onto regular seed. Dedicated sellers such as https://breederregularseeds.com stock lines that trace to the 1980s, offered in packs of 10 seeds because a pack is intended 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 gives up by not growing one, and how to get value 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 to a flower grower that is the whole of it. To a breeder it is half the genome of every seed that follows, and that half is selected with the same attention as the mother.

A male passes on growth habit, hybrid vigour, maturation time, resistance to mould and pests, trichome production and the terpene profile exactly as the female does; it simply shows several of those traits less visibly because it does not produce a smokable flower. Those who breed with regular seed invest as much time selecting males as females, and this is the work that a feminized cross inherits and can never repeat. Feminizing a female gives pollen; it cannot provide a different set of selected traits.

What Happens When Lines Are Only Selfed

Much of the feminized market is built from S1 seeds: a single famous clone, treated and crossed with itself. Each round of that selfing halves the remaining genetic variation, and after two rounds what is left is essentially one plant expressed across marginally different ways.

This is fine for a consumer who wants that single plant. It is a problem for everyone who comes after. Recessive weaknesses emerge: hermaphrodite tendencies, weak stems, sensitivity to one particular mould. Qualities that were present in the parent line but not in the selected clone disappear from the gene pool altogether. A generation of such breeding produces a market crowded with variations of the same few clones, and a anyone wanting to make something new discovers there is nothing remaining to work with. Regular seed from an outcrossed line is the reservoir that replenishes the market, and it can only exists if somebody grows it.

Selecting the Plant Nobody Writes About

Articles on selecting females are everywhere; advice on choosing males is rare, since most growers never keep one past the first week of flower to look. For a grower producing seed, these are the marks breeders watch for.

• Restraint. Males that dump huge quantities of pollen early are often also the less selected genetically; many breeders prefer moderate shedders.
• Structure. Short internodes, a strong central stem and branching that resembles the intended female habit are inherited; a lanky, weak-stemmed male hands that on too.
• Resin on the stem. Scratch a stem or a pollen sac and smell it. A male with trichomes on its flower parts and a strong scent indicates it carries the terpene traits that are worth passing on.
• Stability. Any male that at the same time forms female flowers under ordinary conditions is discarded without exception; the trait is the one thing anyone wants carrying into a line.
• Timing. A male that declares sex first and matures at the same pace as the females is far more workable than an early one that sheds pollen before any female is ready.

Thinking in Numbers

The mistake new regular-seed growers fall into is treating a pack as 10 chances at the one plant. It is the opposite. A pack from a real outcrossed line is a sample of a population, and the point of running it is to observe the range and choose from it.

Roughly half the plants will be male, which means a pack of 10 seeds yields something like five females to evaluate and five males to either discard or assess for breeding. Among the females, look for real variation: stature, finishing time, aroma, density, resistance. This variation is not a flaw in the seed; it is what the seed is selling. The grower who keeps the best female and the best male now owns something a feminized pack can never offer: a pair of selected parents that are theirs.

From One Pack to the Next

Holding selected parents means making the next generation, and here the choices multiply. The main approaches cover most of what home breeders attempt.

• Selected cross. One picked male on one or a few chosen females, everything else culled. The offspring inherit the traits of two selected plants and express less variation than the parent pack. Repeated over generations with stable selection, this is how a stable line is made.
• Backcross. Cross a chosen seedling back to one of its parents to lock in a specific trait. It tightens the genetics quickly and is used when a single plant shows something worth keeping and the other contributed mostly vigour.
• Open pollination. Allow every male reach every female. It preserves the whole range of the line, makes a large volume of seed, and does no choosing at all. This is how landrace lines are kept going, and it is the right method when the goal is preservation not improvement.

Each of these need nothing more than a isolated space for the male, a soft brush or a paper bag, and patience. Not one of them calls for the chemical reversal that feminized seed-making requires.

The Seeds That Only Exist as Regulars

A number of lines have never feminized and likely never will be: landraces gathered from places where cannabis was grown for centuries, and old hybrids from the early decades of indoor breeding. They are available as regular seed because the people maintaining them regard diversity as the entire point, and reversing a single plant would destroy exactly what makes the line worth the trouble of preserving.

Running a landrace from regular seed is a different experience from running a modern hybrid. There will be large variation, long flowering periods in tropical lines, tall plants, and qualities that made sense in a field but not under a tent. Expect also aromas and chemistry that no longer exist in the commercial market at all. Breeder Regular Seeds keeps a separate landrace and heirloom section, and each line labelled with its origin of origin and the number of generations it has been grown out from the original collection.

When the Library Is the Wrong Shop

Nothing of the above makes regular seed into the best choice for everyone, and claiming otherwise does the product no service.

A grower with space for three plants who needs each one of them to finish is far better served with feminized seed. So is anyone who cannot afford to check the plants each day during the onset of flower, because a missed male in a confined space seeds everything within days. Someone running a single autoflower on a balcony gets no use from a pack they cannot select from. And a buyer who wants a specific 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 select, to hold onto and at some point to produce something new; for everyone else the regular shelf is safely ignored where it is.

Practicalities

Breeder Regular Seeds sends each order in unmarked packaging 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 import is not permitted there. Seed law differs sharply by country: in many places buying seeds is legal as genetic preservation while germinating them is not, and in others both are permitted under local rules or both is. Checking the rules where you live is the buyer’s job, and nothing of this article is legal advice.