Regular Seeds: Cannabis’s Genetic Library
Walk through most seed shops today and the regular section is a shelf at the back: smaller every year, priced cheaper than the feminized packs beside it, and picked up by a shrinking number of people who understand exactly what they are looking for. It is easy to see that as the end of a technology. It is nearer to the truth to read it as a library shrinking 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 survives because somebody held onto regular seed. Specialists such as https://breederregularseeds.com stock lines going back to the 1980s, offered in packs of 10 seeds since a pack is intended to be a population, not a one plant. This article sets out the argument for that half-male pack: what the male is for, what a grower gives up by not growing one, and how to get value with a population instead of a clone.
What a Male Plant Is Actually For
The lazy account of a male cannabis plant is “the one that makes pollen”, and to a flower grower that is all it. For a breeder it is half the genome of every seed which follows, and that half is chosen with the same care as the female.
A male passes on structure, vigour, flowering speed, resistance to mould and pests, trichome production and the terpene chemistry just as the female does; it just expresses several of those qualities less visibly because it never produce a smokable flower. Breeders who work with regular seed invest as much time selecting males as females, which is the effort that a feminized cross borrows and can never repeat. Reversing a female gives pollen; it cannot provide a second line of selected traits.
How Diversity Leaks Away
Much of the feminized market is made from S1 seeds: a single famous clone, reversed and pollinated with itself. Every generation of that process halves the surviving genetic variation, and after a couple of generations what is left is close to one plant expressed across slightly different ways.
This is acceptable for a consumer who needs that one plant. It is a loss for everyone who comes after. Hidden weaknesses surface: intersex tendencies, weak stems, susceptibility to one particular mould. Traits that were present in the original line but not in the selected clone disappear from the gene pool entirely. A decade of this produces a market crowded with variations of a dozen plants, and a breeder wanting to make something different finds there is nothing remaining to cross. Regular seed from a true outcrossed line is the store that replenishes the pool, and that reservoir can only persist as long as somebody grows it.
Selecting the Plant Nobody Writes About
Articles on choosing females are everywhere; advice on picking males is scarce, since most people do not keep one past the first week of flower to judge. For anyone producing seed, the following are the marks breeders look for.
- Restraint. Males that dump enormous amounts of pollen all at once are often the least selected in other respects; breeders favour steady producers.
- Structure. Tight internodes, a strong main stem and a frame that resembles the desired female shape are passed on; a lanky, weak-stemmed male passes that down too.
- Timing. A male that shows sex first and matures in step with the females is far more useful than an early one that releases pollen before any female is ready.
- Resin on the stem. Rub a stem or a flower cluster and smell it. A male with trichomes on its sepals and a clear aroma suggests it carries the terpene genes that are worth passing on.
- Stability. Any male that also forms female flowers under normal stress is discarded without exception; the tendency is the one thing worth carrying into a line.
Thinking in Numbers
The mistake first-time regular-seed buyers make is seeing a pack as 10 chances at the same plant. It is nothing of the kind. A pack from a real outcrossed line is a sample of a population, and the point of running it is to see the spread and select from it.
Roughly half the plants will be male, which means a pack of 10 seeds gives around five females to evaluate and five males to cull or assess for breeding. Within the females, look for noticeable variation: height, flowering time, aroma, bud structure, resistance. That variation is not a failure in the seed; it is what the seed is for. The grower who keeps the best female and the best male has something a feminized pack can never offer: a line of chosen parents which are their own.
Making Your Own Seed
Holding chosen parents means producing the next batch, and there the choices multiply. The main approaches account for most of what home breeders do.
- Selected cross. One chosen male to one or several chosen females, everything else culled. The seeds inherit the qualities of two selected plants and show narrower variation than the original pack. Repeated over generations with stable choices, this is how a stable line is made.
- Backcross. Cross a selected offspring back to one of its original parents to lock in a particular trait. It tightens the genetics quickly and is used when one plant shows something worth concentrating and the other contributed mostly vigour.
- Open pollination. Allow each male reach every female. It keeps the whole diversity of the line, produces a generous quantity of seed, and involves no choosing at all. This is how traditional lines are maintained alive, and it is the right approach when the goal is preservation rather than improvement.
Each of these require nothing more than a separate space for the male, a soft brush or a small bag, and patience. Not one of them needs the chemical treatment that feminized seed-making requires.
Landraces and Heirloom Lines
Some lines have never been feminized and likely never will be: landraces gathered from places where cannabis was grown over centuries, and heirloom crosses from the early decades of indoor breeding. They are sold as regular seed since the breeders maintaining them regard the population as the whole point, and reversing a single plant would erase precisely what makes the line worth the trouble of keeping.
Growing a landrace from regular seed is a different experience from growing a modern hybrid. There will be large variation, extended flowering periods in tropical lines, tall plants, and qualities that make sense in a field but not in a tent. Expect too flavours and chemistry that no longer exist in the hybrid market at all. Breeder Regular Seeds keeps a separate landrace and heirloom section, and each line marked with its region of origin and the number of generations it has been reproduced from the first collection.
Who Should Not Buy Regular Seeds
Nothing of the above turns regular seed into the best option for everyone, and claiming that it is would the product no service.
A grower with room for three plants who needs each one of them to finish is far better served with feminized seed. So is a grower who cannot afford to inspect the plants every day around the start of flower, because a late male in a small space ruins the whole crop within days. Someone growing a single autoflower on a balcony gets no use from a pack they cannot select from. And a buyer who is after a specific clone-only plant repeated as closely as possible is better off looking for a feminized S1, not a two-parent cross. Regular seed is for the grower who intends to select, to keep and eventually to produce something of their own; for anyone else the regular shelf is safely left alone.
Practicalities
Breeder Regular Seeds dispatches each order in plain parcels with the original packs sealed inside and nothing on the exterior to indicate the contents. Orders to the United States are not taken, because seed importation is not permitted there. Seed law varies widely by country: in a good number of places buying seeds is lawful as genetic preservation while germinating them is not, and in others both are permitted under licence or neither is. Knowing the position in your own jurisdiction is the buyer’s job, and nothing of this article is legal advice.
