The Sativa Vocabulary: The Words to Learn Before You Buy

Sativa seeds arrive with more vocabulary around them than any other kind of cannabis seed, and most of it means a certain thing to a botanist, another to a seed company and something different again to the grower standing in front of the listing. A failed sativa grow nearly always traces back to a word that was read in the wrong one of those senses: a flowering time read as a promise, a “sativa-dominant” tag read as a description of effect, a landrace bought as if it were a modern hybrid. The entries below were put together with the range at https://hazesativaseeds.com open for the concrete examples, since it runs strongly to the classic end of the spectrum and that is where the vocabulary carry the most weight most; the meanings themselves apply to any sativa seed from any shop. They are in no special order, because not one of them is sense without the rest.

Landrace versus heirloom

A population of plants adapted through centuries to one region by local climate and climate together, rather than by modern breeding. Colombian, Thai, Congolese and Oaxacan stock are the classic sativa examples. A landrace is variable, not a one plant: within a pack the heights, flowering times and smells spread far more than a tent-bred line, and that variation is the point of keeping one.

The trap is treating a landrace as a modern product. It brings habits that made sense in an equatorial field, such as height that no tent can contain and a flowering rhythm set to a daylength the majority of growers cannot provide. “Heirloom” on a listing usually means a landrace that has been reproduced away from its origin over some generations, typically with light selection towards indoor life; it is nearer to usable but nonetheless far from uniform. A seller offering “landrace” without a collection region and a generation history is applying the word loosely, and the pack should be judged accordingly.

Hermaphroditism in long-flowering lines

The production of male flowers on a female plant, typically late in flower and frequently under stress. Every cannabis population has a degree of capacity for it; sativa plants express it more, for one plain one: sixteen weeks of flower is sixteen weeks of opportunity for a light leak, a heat spike or a missed watering to trigger it off, and an plant plant has already waited past its intended finish frequently produces a few desperate pollen sacs on its own in a last effort to make seed.

None of this means a sativa strain unstable as a matter of nature; it makes the room’s discipline matter for longer. A sealed tents, stable temperatures and harvesting the moment the plant is done rather than a week later remove most of the risk. A listing that mentions the breeder tests parents for intersex traits is saying something worth hearing on a sativa than on anything other category.

Terpinolene

A aromatic compound found in large proportion in a lot of old sativa lines and responsible for much of the thing people describe as the “sativa” smell: green, woody, lemon and slightly floral all at once. It is fragile, driven off easily by hot drying, and terpinolene degrades faster in storage than the heavier terpenes that lead most tent lines.

For a seed buyer the word does two things. Where a listing lists terpinolene among the lead terpene, the line most likely has real Haze-era ancestry regardless of what the label claims. And when the grower wants that smell to still be there by the jar, the drying has to be cool and slow; a fast drying room turns a terpinolene line into a flower that tastes of very little and leaves nothing of what the pack promised.

Haze (the family, not the smell)

Originally a specific line of plants put together in 1970s California from Mexican, Colombian and Thai parents, and later preserved and worked in the Netherlands. The Haze grows tall, branches openly, flowers for twelve to sixteen weeks and smells of spice, pine and a note sharp that no other other line exactly reproduces.

In its second sense “Haze” is whatever cross which carries a share of that family, which today is a great many of the sativa-leaning market. A listing which says “Haze” and gives no parents may be eighty percent the old family or a small fraction of it, and the flowering character tracks the fraction, not the name. The working question is never “is it a Haze” but “how much, and through which parent”.

Equatorial

Describes lines out of regions where daylength hardly varies across the year, and that the plant does not evolved a strong reaction to changing days. Such plants often flower slowly at a standard twelve-hour schedule, since twelve hours is, to them, an ordinary day and not a signal.

The practical response, handed around between sativa growers over decades, is to shorten the light further: eleven hours, sometimes ten, particularly during the last weeks. It loses a little yield and buys an more decisive end. A listing which uses “equatorial” is telling you about this in one word, and a grower that takes it as a note on origin has missed the instruction hidden in it.

Flowering time (and what it is counted from)

The figure of weeks between the onset of flowering and harvest, and the single most misread number on a sativa pack. With photoperiod seed it is counted from the day the light is cut to twelve hours, rather than from germination, so a “fourteen-week” sativa grown with a eight-week vegetative period is a five-month plant. Breeders also quote the optimistic end of a range, because the other end sells less seed.

Sativa plants run anywhere from ten weeks to well over twenty, and the slowest strain in the Haze Sativa Seeds range comes in at about 16 weeks from the switch. The catalogue can be filtered by this figure, which is the reasonable first step for a grower with a fixed timetable. A grower who adds four weeks to whatever the pack says is seldom caught out.

Latitude

The single figure that determines whether a sativa will ripen outdoors, and one no pack states. Equatorial lines need a autumn days to go on late enough for the plant to finish; at northern latitudes the frost comes first, and the grower harvests an half-finished plant in late October or watches it rot in November. A further south, in a northern hemisphere, the later the season stretches, and Mediterranean and low-latitude growers are able to finish plants that temperate gardens cannot.

The usable rule for a seed pack: an “outdoor” sativa finishing date is given for the breeder’s own latitude, normally a point in southern Europe or the west coast of the United States, and each step north of that moves the finish later towards the weather. A grower north of roughly the fiftieth parallel who wants a true sativa in the garden is looking for a sativa autoflower or else a covered space, not a better summer.

Foxtailing (and when it is not a fault)

The habit of some flowers to push out fresh bud growth on top of old ones, producing towered, open buds rather than round ones. In most tent-bred lines it is a stress response, typically caused by light that is too close or temperatures that is too high, and the standard response is to fix the room.

In a good number of sativas, especially Thai and some Haze lines, it is genetic and is going to occur under a perfect room. A new sativa grower often spends a month hunting a problem that was never not a problem, dropping lights and temperatures only slowing a long flower further. The listing seldom says which kind you should expect; the lineage usually does.

Stretch

The surge of upward growth that follows the switch to flowering. Most tent-bred plants add around half again; sativas routinely double, and a few landrace lines triple. The stretch continues two to four weeks and cannot be stopped once it has started, only redirected by training.

In tent terms, the stretch multiplier is a fact to reading ahead of deciding when to flip. A sativa switched at sixty centimetres in a two-metre tent is touching the lamp before week four of flower; one switched at thirty centimetres has room. People moving over from indica strains nearly always flip too late the first time, and the lesson is written on the ceiling of the tent.