Sativa seeds come with more vocabulary around them than any other kind of cannabis seed, and most of it means one thing to a botanist, another to a seed company and a third to the person standing in front of the listing. The failed sativa grow usually traces back to a word that was understood in the wrong sense: a flowering time read as a promise, a „sativa-dominant” label taken as a description of effect, a landrace chosen like it were a tent-bred hybrid. The entries below are put together with the range at https://hazesativaseeds.com to hand as reference, since it runs heavily towards the long-flowering end of the category where the vocabulary carry the most weight most; the meanings themselves hold to any sativa seed from any shop. They are given in no special order, because none of them is sense without the others.
Landrace versus heirloom
A population of plants adapted over centuries to one region by local growers and growers alike, rather than by deliberate breeding. Colombian, Thai, Congolese and Mexican lines are the sativa cases. A landrace is variable, not a single plant: inside a pack the flowering times, finishing times and aromas spread widely than in a tent-bred line, and that variation is the point of growing one.
The trap is buying a landrace as a modern hybrid. It brings habits that make sense in an open field, such as height that no tent can hold and a flowering rhythm set to an equatorial daylength most growers never offer. „Heirloom” on a listing usually refers to a landrace that has been reproduced somewhere for some generations, often with a degree of selection for indoor conditions; it is closer to manageable but still far from a hybrid. A seller listing „landrace” without an origin region and a reproduction history is applying the word as a flavour, and the seeds should be judged with that in mind.
Sativa-dominant
A marketing term rather than a botanical one. The phrase usually means that more of a hybrid’s parents are described as sativa by the breeder who wrote the description, and sometimes signals nothing more than that the buds are longer or the aroma brighter than the that breeder’s indica-labelled lines.
The experience people connect with the word, lively rather than sedating, is driven far more by terpene profile and by THC balance than it is by ancestry, and a good number of „sativa-dominant” releases produce a flat sleepy result and a good number of indica-labelled lines deliver the opposite. To a grower the percentage is worth something as a rough hint to growth habit, flowering time and stretch; as a predictor to how it feels it is close to useless unless accompanied by the aroma description.
Intersex tendency
The production of pollen-bearing flowers on a female plant, usually towards the end in flower and frequently in response to stress. Every cannabis line has a degree of capacity for do; sativa lines express it more often, and the reason is a simple reason: sixteen weeks of flower is sixteen weeks of exposure for a timer leak, a heat spike or a missed watering to set it going, and a old plant has already waited past its natural end frequently throws a few desperate male sacs on its own as a last attempt to make seed.
Not one of this makes a sativa strain weak by nature; it makes the room’s discipline count over a longer stretch. Light-tight room, steady temperatures and harvesting the moment the plant is done and not a week later take away the greater part of the problem. A listing that states a breeder tests parents for intersex tendency is worth more for a sativa than for anything else.
Flowering time
The number of weeks between the onset of flowering and harvest, which is the one most frequently misunderstood number on a sativa pack. For photoperiod seed it is counted from the day the light is cut to twelve hours, rather than from sowing, so a „fourteen-week” sativa grown after an ordinary vegetative stage is a five-month plant. Seed companies also quote the optimistic end of the range, since the other end moves less seed.
Long-flowering plants take everywhere from ten weeks to well over twenty, and the longest strain in the Haze Sativa Seeds range is at about 16 weeks from the flip. The catalogue can be filtered by that number, which is the reasonable first pass if you have a grower on a tight timetable. A grower who adds four weeks on top of the figure the pack says is seldom caught out.
Foxtailing
The habit of certain flowers to grow new calyx growth on top of existing ones, producing towered, open buds instead of dense ones. In most tent-bred lines it is a heat response, usually caused by light too close or temperatures that is too high, and the standard response is to fix the room.
In a good number of sativas, above all Southeast Asian and certain Haze hybrids, it is built in and is going to happen in a flawless room. A new sativa grower often wastes weeks hunting a fault that is there, dropping lights and temperatures and slowing an already long flower further. The breeder seldom says which type you should expect; the lineage generally tells you.
Stretch
The burst of upward growth that follows the change to flowering. Most tent-bred plants add half their height again; sativas commonly double, and some equatorial lines go further. The stretch continues two to four weeks and will not be stopped once it begins, only redirected by training.
In practical terms, the stretch multiplier is the number worth reading before deciding when to flip. A sativa switched at sixty centimetres centimetres in a two-metre tent is at the lamp before week four of flower; one switched at thirty centimetres has room. Growers moving over from indica stock almost always flip far too late the first time, and the consequence is visible on the ceiling of the tent.
Equatorial (the twelve-hour problem)
Describes lines from regions in which daylength barely varies across the year, and that the plant never evolved a strong reaction to shortening days. Such lines frequently flower reluctantly under a conventional twelve-hour schedule, since twelve hours is, for them, an unremarkable day rather than a signal.
The practical fix, handed down between sativa growers for decades, is to cut the light more: eleven hours, sometimes ten, especially during the last weeks. It loses some little yield and gains an more decisive end. A listing which says „equatorial” is warning you about this with one word, and a grower who takes it as a note on origin has missed the point hidden in it.
Terpinolene (the „sativa smell”)
A terpene found in high proportion in a lot of old sativa lines and responsible for much of what growers describe as the „sativa” aroma: green, piney, citrus and slightly floral at once. It is fragile, lost quickly through hot drying, and it degrades more quickly during the cure than the heavier terpenes which lead most tent stock.
To a seed buyer the word earns two jobs. When a listing names terpinolene among the leading terpene, the line probably carries substantial old-sativa genetics whatever the label claims. And where the you are after that smell to survive by the jar, the drying is going to be slow and slow; a warm dry turns a terpinolene sativa to something that smells of very little and no trace of what the pack described.
Haze
Originally a specific line of plants bred in 1970s California from Colombian, Thai and South Indian landraces, and later kept and refined in the Netherlands. The Haze runs tall, fills out openly, flowers for twelve sixteen weeks and smells of incense, pine and something sharp that no line quite has.
In its looser sense „Haze” is any cross that carries some of that family, which by now is most of the sativa-leaning market. A listing that says „Haze” without parents could be mostly percent original classic family or a sixteenth of it, and the grow character follows the fraction, not the name. The useful question is not „is it a Haze” but „how much, and via which parent”.