Sativa seeds come with more vocabulary attached than any other category of cannabis seed, and a good deal of it means one thing to a botanist, another to a breeder and a third to the grower trying to make a decision in front of the pack. A disappointing sativa grow usually goes back to a word that was read in the wrong sense: a flowering time read as a fixed number, a “sativa-dominant” label read as a description of effect, a landrace bought like it were a modern hybrid. The entries below are put together with the range at https://hazesativaseeds.com open as reference, since it leans strongly towards the classic end of the category and that is where the words matter most; the definitions though apply to any sativa seed from any seller. They are given in no special order, since not one of them is sense without the rest.
Foxtailing
The tendency of some flowers to push out fresh bud clusters on top of old ones, giving towered, open buds rather than round ones. In the majority of tent-bred strains it is a stress symptom, usually from light that is too close or a room that is too high, and the advice is to fix the cause.
In a good number of sativas, above all Southeast Asian and some Haze lines, it is genetic and will happen under a perfect room. A first-time sativa grower often wastes weeks hunting a fault that was never there, dropping lights and temperatures only delaying a long flower further. The listing seldom says which kind you should expect; the lineage usually tells you.
Terpinolene (the “sativa smell”)
A terpene present in high proportion in a lot of classic sativa lines and accounting for much of the thing people describe as the “sativa” aroma: fresh, woody, citrus and slightly sweet all at once. It is fragile, lost quickly through fast drying, and terpinolene degrades more quickly during storage than the heavier terpenes that dominate indica-leaning lines.
For a seed buyer the word earns two things. Where a listing names terpinolene among the lead terpene, the line most likely carries real Haze-era genetics regardless of what the percentage claims. And where the grower are after that smell to still be there by the jar, the cure has to be slow and cool; a warm dry flattens a terpinolene sativa into a flower that tastes of very little and nothing of what the pack described.
Equatorial
Describes plants out of latitudes in which daylength hardly changes across the year, which means where the plant does not develop a strong response to changing days. Such plants often flower slowly at a conventional twelve-hour light cycle, because twelve hours is, for them, a mild ordinary day rather than a signal.
The practical response, passed down among sativa growers over decades, is to cut the light more: eleven hours, sometimes ten, especially in the final weeks. It loses a little yield and buys a more decisive finish. A listing that uses “equatorial” is warning you this with one word, and a grower who takes it as mere origin has missed the instruction inside it.
Intersex tendency
The production of male flowers on a female plant, usually late in flower and often in response to stress. Almost every cannabis population carries a degree of capacity to do; sativa lines show it more often, and the reason is one simple reason: sixteen weeks of flower is sixteen weeks of exposure for a light leak, a temperature spike or a late watering to set it off, and a plant plant has already gone beyond its natural finish frequently produces a few late pollen flowers on its own in a final effort to set seed.
Not one of this means a sativa line unstable as a matter of course; it makes the grower’s discipline count for longer. Light-tight tents, stable conditions and harvesting when the plant is ready and not a weeks after remove the greater part of the problem. A listing that states a breeder tests parents for intersex traits is worth worth hearing on a sativa than on any else.
Landrace
A population of plants shaped through centuries to one place by local growers and growers together, rather than by modern breeding. Colombian, Thai, Congolese and Mexican stock are the sativa examples. A landrace is a spread, not a single plant: inside a pack the heights, flowering times and smells range far more than any tent-bred hybrid, and this variation is the whole value of growing one.
The trap is buying a landrace like a modern hybrid. It carries traits that made sense in an equatorial field, such as a frame that no tent can hold and a flowering clock set to a daylength most growers cannot offer. “Heirloom” in a listing usually means a landrace that has been reproduced away from its origin over some generations, typically with a degree of selection for tent conditions; it is nearer to usable but nonetheless not uniform. A shop listing “landrace” that does not give an collection point and a generation count is applying the word loosely, and the seeds should be priced accordingly.
Flowering time
The figure of weeks between the start of flowering and maturity, 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 sowing, so a “fourteen-week” sativa started with a ordinary vegetative stage is a twenty-two-week plant. Seed companies additionally quote the optimistic end of a range, because the other end sells fewer seed.
Long-flowering lines run everywhere from ten weeks to well over twenty, and the slowest strain in the Haze Sativa Seeds range comes in at around 16 weeks after the switch. The catalogue can be sorted by that number, which is a reasonable first step if you have a grower on a tight timetable. A grower who allows four weeks on top of the figure the pack states is seldom caught out.
Stretch (the doubling)
The surge of vertical growth which follows the change to flowering. Indica-leaning plants add half again; sativas routinely double, and some landrace lines triple. The stretch lasts two to five weeks and cannot be halted after it begins, only bent sideways by training.
In tent terms, a stretch figure is a number worth reading ahead of choosing when to switch. A sativa switched at sixty centimetres centimetres inside a standard tent is touching the lamp by week four of flower; one flipped at thirty centimetres centimetres has room. Growers moving from indica stock almost always flip far too late the first time, and the consequence is written on the ceiling of the tent.
Latitude (outdoor sativas)
The single figure that decides whether a sativa will finish outdoors, and a number no pack states. Long-flowering plants require a run of shortening days to continue late enough to let the plant to ripen; in northern latitudes the frost comes before that, and the grower cuts an unripe plant in the end of October or loses it to mould in November. A closer south, in a northern hemisphere, the longer the season stretches, and Mediterranean and subtropical gardens are able to finish lines that temperate gardens cannot.
The practical rule of a seed pack: an “outdoor” line finishing month is stated for the breeder’s own latitude, normally somewhere within southern Europe or the west coast of the United States, and each step further north of it pushes the finish back into the frost. A grower above roughly the fiftieth parallel who is after a true sativa in the garden is shopping for an autoflower or a covered space, not a longer summer.
Haze
Originally a particular line of plants bred in coastal California from Colombian, Colombian and Thai parents, and then kept and worked in the Netherlands. The Haze runs tall, branches openly, flowers for twelve sixteen weeks and carries a scent of incense, citrus and a note sharp that no other line quite has.
In its looser sense “Haze” is whatever hybrid which carries a share of that family, which by now is a great many of the sativa-leaning market. A listing which says “Haze” and gives no lineage could be eighty percent original classic family or a sixteenth of it, and the flowering character follows the fraction, not the name. The working question is not “is it a Haze” but “how much, and via which parent”.
