Walk through most seed shops today and the regular section is the shelf at the back: smaller every year, marked cheaper than the feminized packs next to it, and bought by a shrinking number of people who understand exactly what they are looking for. It is tempting to read that as the end of a technology. It is closer to the truth to see it as a library losing shelves while the paperback rack next door expands. Every female-only line started as a regular one, every new cross needs a male somewhere in its history, and the diversity of cannabis genetics that survives at all survives because someone held onto regular seed. Dedicated sellers such as https://breederregularseeds.com stock 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 sets out the argument for that unfashionable pack: what the male contributes, what a buyer gives up by not seeing one, and how to work with a population instead of a copy.
The Other Half of the Genome
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 half is chosen with the same care as the mother.
A male passes on structure, vigour, maturation speed, resistance to mould and pests, resin production and the terpene chemistry just as the female does; it simply expresses some of those qualities less visibly because it does not produce a smokable flower. Breeders who breed with regular seed spend at least as much time selecting males as females, and this is the work that a feminized line inherits and cannot repeat. Reversing a female yields pollen; it does not give a different line of selected genes.
What Happens When Lines Are Only Selfed
A great deal of the feminized catalogue is made from S1 seeds: a one famous clone, reversed and pollinated with itself. Each generation of that selfing cuts in half the surviving genetic diversity, and after a couple of generations what is left is essentially one plant repeated in slightly different ways.
That is acceptable for a grower who needs that single plant. It is a loss for everyone who comes after. Hidden weaknesses surface: intersex tendencies, brittle stems, susceptibility to one particular mould. Traits that existed in the original line but absent in the chosen clone disappear from the gene pool entirely. A generation of such breeding produces a market full with variations of a dozen clones, and a breeder trying to make something new finds there is little left to cross. Regular seed from an outcrossed line is the store that replenishes the market, and it can only persist as long as somebody grows it.
Selecting the Plant Nobody Writes About
Guides on choosing females are everywhere; advice on picking males is rare, since most growers do not keep one past the first week of flower to judge. For anyone making seed, these are the signs breeders watch for.
- Structure. Tight internodes, a strong central stem and branching that resembles the desired female shape are passed on; a lanky, weak-stemmed male passes that down too.
- Stability. Any male that at the same time forms female flowers under ordinary conditions is discarded outright; that tendency is the last thing worth breeding into a line.
- Restraint. Plants that dump huge amounts of pollen all at once are frequently the least selected genetically; breeders prefer moderate producers.
- Resin on the stem. Scratch a stem or a flower sac and smell it. A male with resin on its flower parts and a clear scent indicates it holds the resin traits worth keeping.
- Timing. A male that shows sex first and flowers in step with the females is far more useful than an early one that sheds pollen before any female is ready.
What 10 Seeds Actually Give You
A error first-time regular-seed growers make is treating a pack as 10 attempts at the one plant. It is the opposite. A pack from a real outcrossed line is a slice of a population, and the point of growing it is to observe the range and choose from it.
About half the plants will be male, so a pack of 10 seeds yields around five females to compare and five males to discard or judge for breeding. Among the females, expect noticeable differences: stature, flowering time, smell, density, tolerance. That variation is not a failure in the seed; it is what the seed is for. The grower who keeps the best female and male has something a feminized pack cannot offer: a pair of chosen parents which are their own.
From One Pack to the Next
Owning chosen parents is only worth something if making the next batch, and here the options multiply. Three methods account for most of what home breeders do.
- Selected cross. One picked male to one or several picked females, everything else removed. The offspring inherit the qualities of two selected plants and show narrower variation than the parent pack. Repeated over several rounds with consistent choices, this is how a new line is built.
- Open pollination. Let every male reach every female. It keeps the whole range of the line, produces a generous quantity of seed, and involves no choosing at all. This is how traditional lines are kept alive, and it is the right approach when the aim is preservation rather than refinement.
- Backcross. Take a selected offspring back to one of its parents to lock in a particular quality. It narrows the range fast and is useful when a single parent shows something worth keeping and the other brought mostly vigour.
Each of these need only a isolated space for the male, a soft brush or a paper bag, and a few weeks. Not one of them needs the chemical treatment that feminized seed-making does.
Keeping Old Lines Alive
A number of lines have never feminized and probably never will be: landraces collected from regions where cannabis grew for centuries, and old crosses from the early decades of indoor breeding. They are sold as regular seed since the breeders keeping them treat the population as the whole point, and selfing a single clone would erase precisely what makes the line worth preserving.
Growing a landrace from regular seed is different from growing a commercial hybrid. There will be large variation, extended flowering periods in equatorial lines, lanky plants, and qualities that make sense in a mountain valley but not in a small room. Expect also flavours and chemistry that no longer exist in the commercial market anywhere. Breeder Regular Seeds keeps a dedicated landrace and heirloom section, and each line marked with its origin of origin and the generation it has been reproduced from the original collection.
When the Library Is the Wrong Shop
Nothing of the above turns regular seed into the right option for everyone, and pretending otherwise would the product no favours.
A grower with room for a handful of plants who needs each one of them to finish is better off with feminized seed. So is a grower who cannot afford to check the plants each day around the onset of flower, since a late male in a confined space ruins everything inside days. Someone growing a single autoflower on a balcony gets no value from a pack they cannot select from. And a buyer who is after 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 wants to select, to keep and eventually to make something new; for everyone else the back shelf is safely left alone.
Ordering and the Law
Breeder Regular Seeds sends each order in plain parcels with the breeder’s packs sealed inside and nothing on the outside to reveal the contents. Orders to the United States are not accepted, as seed importation is restricted there. Seed law differs sharply by country: in a good number of places owning seeds is legal as genetic preservation while germinating them is not, and in others the two are permitted under licence or neither is. Checking the rules where you live is the buyer’s responsibility, and nothing of this article should be read as legal advice.