Sativa seeds arrive with more vocabulary attached than any other category of cannabis seed, and most of it says one thing to a botanist, something else to a breeder and something different again to the person trying to make a decision in front of the pack. A failed sativa grow nearly always goes back to a word that was understood in the wrong one of those senses: a flowering time read as a fixed number, a „sativa-dominant” tag taken as a description of character, a landrace chosen as if it were a modern hybrid. The entries below were put together with the range at https://hazesativaseeds.com to hand for the concrete examples, because it leans heavily to the classic end of the category where the words matter most; the meanings though apply to any sativa seed from any shop. They are in no particular order, because not one of them is sense without the rest.
Landrace
A population of plants adapted through centuries to a particular place by local growers and climate alike, rather than by deliberate breeding. Colombian, Colombian, Congolese and Mexican stock are the sativa cases. A landrace is a spread, not a one plant: inside a pack the heights, flowering times and smells spread widely than in a tent-bred line, and this variation is the whole value of keeping one.
The trap is treating a landrace as a finished hybrid. It brings habits that made sense in an equatorial field, such as height no tent can contain and a flowering clock set to a daylength most growers cannot offer. „Heirloom” on a listing usually means a landrace that has been reproduced away from its origin for some generations, typically with a degree of selection for indoor conditions; it is closer to manageable but still not uniform. A seller offering „landrace” that does not give a collection point and a generation count is using the word as a flavour, and the seeds should be priced with that in mind.
Terpinolene (the „sativa smell”)
A terpene found in large amounts in many old sativa lines and responsible for much of what people mean as the „sativa” aroma: green, woody, citrus and faintly sweet all at once. It is fragile, lost quickly through fast drying, and it degrades more quickly during the cure than the heavier terpenes which lead indica-leaning lines.
For a seed buyer the word does two jobs. Where a listing names terpinolene as the lead terpene, the strain most likely carries substantial Haze-era genetics regardless of what the label says. And when the grower wants that profile to still be there by the jar, the cure has to be cool and slow; a warm dry flattens a terpinolene sativa into a flower that tastes of very little and leaves nothing of what the pack described.
Equatorial
Describes lines from regions in which daylength barely changes across the year, which means that the plant does not evolved a sharp reaction to changing days. These lines frequently start flowering reluctantly under a conventional twelve-hour light cycle, because twelve hours is, for them, an unremarkable day and not a signal.
The working fix, handed down between sativa growers for decades, is to shorten the light further: eleven hours, sometimes ten, particularly in the final weeks. It loses a yield yield and buys a earlier decisive end. A listing which says „equatorial” is warning you this with one word, and a grower that takes it as mere geography misses the instruction inside it.
Sativa-dominant
A marketing category rather than a measurable one. The phrase generally means that more of a hybrid’s parents were classed as sativa by the breeder who wrote the listing, and occasionally signals nothing more than that the buds are airier or the smell brighter than the that breeder’s indica-labelled releases.
The experience people connect with a word, lively instead of heavy, is driven far more by terpene profile and by cannabinoid content than it is by ancestry, and plenty of „sativa-dominant” releases produce a flat sleepy result and a good number of the opposite stock do exactly the reverse. For a buyer the percentage is worth something for a rough guide to growth habit, flowering time and stretch; as a guide to how it feels it is next to useless without the terpene notes.
Intersex tendency
The appearance of male flowers on a female plant, usually late in flower and often under stress. Every cannabis line has a degree of capacity to it; sativa lines show it more, and the reason is one simple reason: sixteen weeks of flower is sixteen weeks of exposure for a timer leak, a heat spike or a missed watering to trigger it off, and a old plant has already gone beyond its natural finish frequently produces a few late male sacs on its own as a final attempt to make seed.
Not one of these means a sativa strain weak by course; it makes the room’s consistency count over longer. A sealed tents, steady conditions and harvesting when the plant is done and not two week later take away the greater part of the risk. A listing which states the breeder tests parents for intersex traits is saying something worth hearing for a long-flowering line than on any other category.
Latitude (outdoor sativas)
The one figure that decides if a sativa will finish outdoors, and a number no pack prints. Equatorial lines need the run of shortening days to continue late enough for the plant to finish; at high latitudes the frost arrives first, and the grower harvests an unripe plant in late October or watches it rot in November. The further south, within a northern hemisphere, the later the season runs, and coastal and low-latitude gardens can finish plants that temperate gardens never will.
The practical reading for a seed pack: an „outdoor” sativa harvest date is stated for the breeder’s own latitude, usually a point within temperate Europe or the west coast of the United States, and every step north of that pushes the finish later towards the frost. A grower above about the fiftieth parallel that wants a true sativa in the garden needs to be shopping for a sativa autoflower or else a covered space, not a better summer.
Stretch
The surge of vertical growth that follows the switch to flowering. Most tent-bred plants gain half their height again; sativas commonly double, and a few equatorial types go further. The stretch lasts three to four weeks and cannot be stopped once it has started, merely redirected by training.
In practical terms, a stretch multiplier is the number to reading before deciding when to switch. A sativa flipped at sixty centimetres inside a standard tent is at the lamp by week four of flower; one flipped at thirty centimetres has room. Growers moving from indica strains almost always flip far too late the first time, and the lesson is visible on the ceiling of the tent.
Foxtailing
The tendency of certain flowers to push out new bud growth on top of old ones, giving towered, open buds rather than dense ones. In the majority of indica-leaning lines it is a stress response, usually from light that is too close or a room that is too high, and the advice is to fix the cause.
In many sativas, especially Southeast Asian and some Haze hybrids, it is genetic and will happen in a perfect room. A first-time sativa grower frequently wastes a month chasing a problem that was never not a problem, dropping lights and temperatures only delaying an already slow plant even more. The listing rarely says which kind to expect; the lineage generally does.
Flowering time
The number of weeks from the onset of flowering and maturity, which is the one most misread number on a sativa pack. For photoperiod seed it is measured from the day the light is cut to twelve hours, rather than from sowing, so a „fourteen-week” sativa started after a ordinary vegetative stage is a twenty-two-week plant. Breeders also quote the optimistic end of a spread, since the longer end moves fewer seed.
Long-flowering lines take anywhere from ten weeks to more than twenty, and the longest strain in the Haze Sativa Seeds range is at about 16 weeks after the flip. The catalogue can be sorted by this figure, which is a reasonable first step if you have a grower on a fixed schedule. A grower who adds four weeks on top of the figure the pack states is seldom disappointed.