Sativa seeds arrive with more jargon around them than any other kind of cannabis seed, and a good deal of it means one thing to a botanist, something else to a seed company and a third to the grower standing in front of the pack. A failed sativa grow usually goes back to a word that was understood in the wrong one of those senses: a flowering time taken as a fixed number, a “sativa-dominant” tag read as a statement of character, a landrace chosen as if it were a tent-bred hybrid. The entries below were written with the range at https://hazesativaseeds.com to hand as reference, because it runs strongly to the long-flowering end of the category and that is where the vocabulary carry the most weight most; the meanings themselves apply to any sativa seed from any seller. They are given in no special order, since not one of them makes sense without the others.
Haze
In its first sense a particular line of plants bred in 1970s California from Colombian, Colombian and Thai landraces, and later kept and worked in the Netherlands. A true Haze grows tall, branches sparsely, takes for twelve to to sixteen weeks and carries a scent of incense, pine and a note metallic that no other line quite has.
In its second sense “Haze” is whatever cross that carries some of that family, which today is a great many of the sativa-leaning catalogue. A listing that says “Haze” and gives no lineage may be mostly percent the classic family or one sixteenth of it, and the grow character tracks the fraction, not the name. The useful question is never “is it a Haze” but “how much, and via which parent”.
Stretch
The surge of upward growth that comes after the change to flowering. Indica-leaning plants gain half again; sativas routinely double, and some landrace types go further. The stretch lasts three to four weeks and will not be halted after it begins, only redirected by training.
In practical terms, the stretch figure is a number worth reading ahead of choosing when to switch. A sativa flipped at sixty centimetres centimetres inside a two-metre tent is touching the lamp by week four of flower; one switched at thirty centimetres centimetres has room. People moving from indica stock nearly always switch far too late the first time, and the lesson is visible on the ceiling of the tent.
Terpinolene (the “sativa smell”)
A aromatic compound found in large amounts in many classic sativa strains and accounting for much of the thing people mean as a “sativa” aroma: fresh, woody, citrus and slightly floral all at once. It is fragile, driven off easily by fast drying, and it degrades faster during the cure than the heavier terpenes that lead most tent stock.
To a seed buyer the word does two jobs. Where a listing names terpinolene as the lead aromas, the line probably carries real Haze-era ancestry whatever the percentage claims. And when the grower are after that profile to survive by the jar, the drying is going to be cool and cool; a fast dry flattens a terpinolene line to a flower that smells of very little and leaves nothing of what the pack promised.
Sativa-dominant
A marketing category and not a botanical one. The phrase generally means that the larger share of a hybrid’s parents were described as sativa by whoever drafted the description, which occasionally means nothing more than that the buds are airier or the smell brighter than the same breeder’s indica-labelled releases.
The experience people associate with a word, clear-headed rather than heavy, is governed more by terpene profile and the cannabinoid content than it is by ancestry, and a good number of “sativa-dominant” hybrids deliver a flat sleepy result and plenty of the opposite lines do the opposite. To a grower the percentage is useful for a loose hint to growth habit, flowering time and stretch; as a guide to effect it is close to worthless unless accompanied by the terpene description.
Hermaphroditism in long-flowering lines
The production of pollen-bearing flowers on a female plant, typically towards the end in flower and frequently under stress. Every cannabis line carries a degree of capacity for do; long-flowering plants express it more, for one plain reason: fourteen weeks of flower is sixteen weeks of opportunity for a timer leak, a temperature spike or a missed watering to set it off, and a plant that has already gone beyond its intended finish often produces a few late pollen sacs on its own as a final attempt to make seed.
None of this means a sativa strain weak as a matter of course; it makes the grower’s consistency count for a longer stretch. Light-tight tents, stable conditions and cutting when the plant is ready rather than a weeks after take away the greater part of the risk. A listing which states the breeder tests parents for hermaphrodite traits is saying something more on a long-flowering line than on any other category.
Flowering time (and what it is counted from)
The figure of weeks between the start of flowering and harvest, and 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, not from germination, so a “fourteen-week” sativa started with a ordinary vegetative period is a twenty-two-week plant. Breeders additionally quote the shorter end of a range, because the longer end moves fewer seed.
Long-flowering plants take anywhere from ten weeks to well over twenty, and the longest strain in the Haze Sativa Seeds range comes in at about 16 weeks from the flip. The catalogue can be filtered by that figure, which is the sensible first step for a grower on a tight schedule. A grower who adds four weeks on top of whatever the pack says is rarely caught out.
Latitude
The one figure that determines if a sativa will finish outdoors, and a number no pack states. Long-flowering lines require a autumn days to continue long enough for the plant ripen; in northern latitudes the frost comes first, and the grower harvests a half-finished plant in late October or watches it rot in November. A closer south, in the northern hemisphere, the later the window runs, and Mediterranean and low-latitude growers are able to finish lines that northern growers never will.
The practical reading for a seed listing: an “outdoor” line finishing date is stated for the breeder’s own latitude, normally somewhere in temperate Europe or the west coast of the United States, and every step further north of it moves the finish later towards the weather. A grower north of roughly the fiftieth parallel that is after a true sativa in the garden needs to be shopping for a sativa autoflower or else a greenhouse, and not a longer season.
Foxtailing
The tendency of some flowers to grow fresh bud clusters on top of existing ones, giving towered, irregular buds instead of dense ones. In most indica-leaning strains it is a heat response, usually caused by light too close or temperatures that is too high, and the advice is to correct the room.
In a good number of sativas, above all Thai and certain Haze hybrids, it is built in and is going to occur under a perfect room. A new sativa grower frequently spends a month chasing a problem that was never not there, dropping lights and heat only delaying a long flower even more. The listing rarely says which kind to expect; the parentage generally does.
Equatorial
Refers to plants from regions in which daylength barely varies through the year, and that the plant never evolved a strong reaction to changing days. Such plants frequently start flowering reluctantly under a standard twelve-hour light cycle, since twelve hours is, for them, a mild ordinary day and not a signal.
The practical response, handed down among sativa growers over decades, is to cut the light further: eleven hours, occasionally ten, particularly in the final weeks. It costs some yield yield and buys a more decisive end. A listing which uses “equatorial” is telling you about this in one word, and a grower who reads it as mere origin misses the instruction inside it.
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