Sativa seeds come with more vocabulary around them than any other kind of cannabis seed, and most of it says a certain thing to a botanist, something else to a seed company and a third to the grower trying to make a decision in front of the listing. The failed sativa grow nearly always goes back to a word that was read in the wrong one of those senses: a flowering time taken as a fixed number, a “sativa-dominant” label taken as a statement of character, a landrace bought like it were a modern hybrid. The entries below were written with the range at https://hazesativaseeds.com to hand as reference, since it leans heavily to the long-flowering 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 seller. They are in no particular order, because none of them is sense on its own without the others.
Intersex tendency
The appearance of male flowers on a female plant, usually late in flower and frequently under stress. Almost every cannabis population carries some tendency to it; sativa lines show it more often, and the reason is one simple reason: sixteen weeks of flower is fourteen weeks of opportunity for a light leak, a heat spike or a missed watering to set it going, and an old that has already gone past its intended end frequently produces a few desperate pollen sacs on its own as a final effort to set seed.
None of these means a sativa strain unstable as a matter of nature; it makes the grower’s consistency matter for longer. A sealed tents, steady conditions and cutting when the plant is ready rather than two week after take away most of the problem. A listing that states the breeder tests parents for hermaphrodite traits is saying something more for a sativa than on any else.
Haze
In its first sense a particular family of plants put together in coastal California from Colombian, Colombian and Thai parents, and later preserved and worked in the Netherlands. A true Haze runs tall, branches openly, takes for twelve sixteen weeks and smells of spice, pine and something sharp that no other line exactly has.
In its second sense “Haze” is whatever cross that carries a share of that family, and today is a great many of the sativa-leaning catalogue. A listing that reads “Haze” without lineage could be mostly percent original old family or a sixteenth of it, and the grow character follows the fraction, not the name. The working question is never “is it a Haze” but “how much, and via which parent”.
Stretch (the doubling)
The burst of upward growth that follows the switch to flowering. Indica-leaning plants gain around half their height again; sativas routinely double, and some equatorial lines go further. The stretch lasts two to four weeks and will not be stopped once it has started, merely bent sideways by training.
In tent terms, the stretch multiplier is a fact worth read before choosing when to switch. A sativa flipped at sixty centimetres centimetres in a two-metre tent is at the lamp by week four of flower; one switched at thirty centimetres 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.
Equatorial
Refers to plants out of latitudes where daylength barely changes across the year, and where the plant never evolved a sharp response to shortening days. These plants frequently start flowering reluctantly under a conventional twelve-hour schedule, because twelve hours is, for them, an unremarkable day rather than a signal.
The working fix, handed around among sativa growers for decades, is to cut the light more: eleven hours, sometimes ten, especially in the final weeks. It loses a little yield and buys a earlier decisive end. A listing which uses “equatorial” is warning you this with one word, and a grower who takes it as a note on geography has missed the instruction hidden in it.
Landrace versus heirloom
A population of plants adapted through generations to a particular place by the local climate and growers alike, rather than by deliberate breeding. Colombian, Thai, Congolese and Mexican lines are the sativa cases. A landrace is variable, not a one plant: within a pack the flowering times, flowering times and aromas range widely than in a tent-bred hybrid, and that variation is the point of growing one.
The trap is buying a landrace like a modern product. It brings traits that make sense in an equatorial field, such as height that no tent can hold and a flowering rhythm tuned to an daylength most growers cannot provide. “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 towards indoor life; it is nearer to usable but still far from uniform. A seller offering “landrace” without an origin region and a reproduction count is using the word as a flavour, and the pack should be judged accordingly.
Flowering time
The number of weeks from the start of flowering and harvest, and the one most frequently misunderstood figure on a sativa pack. With photoperiod seed it is measured from the day the light drops to twelve hours, rather than from sowing, so a “fourteen-week” sativa grown after a eight-week vegetative period is a five-month plant. Breeders also quote the optimistic end of a spread, since the longer end moves less seed.
Long-flowering plants take anywhere from ten weeks to more than twenty, and the longest line in the Haze Sativa Seeds range is at about 16 weeks after the flip. The catalogue can be filtered by that number, which is the reasonable first pass for a grower on a tight timetable. A grower who allows four weeks to the figure the pack says is seldom caught out.
Sativa-dominant (the label)
The marketing term rather than a botanical one. The phrase usually means that more of a hybrid’s parents are classed as sativa by the breeder who wrote the description, which sometimes means no more than that the flowers are airier or the aroma brighter than the same breeder’s indica-labelled releases.
The effect people connect with the word, clear-headed rather than heavy, is governed more by terpene chemistry and the cannabinoid content than by ancestry, and plenty of “sativa-dominant” hybrids deliver a heavy couch result and a good number of indica-labelled lines do exactly the opposite. To a grower the percentage is useful as a rough hint to growth habit, flowering time and stretch; for a guide to how it feels it is close to useless unless accompanied by the aroma description.
Terpinolene (the “sativa smell”)
A terpene found in high proportion in a lot of old sativa lines and accounting for most of the thing people mean as the “sativa” aroma: green, woody, citrus and slightly floral at once. It is volatile, driven off easily through hot drying, and terpinolene degrades faster during the cure than the heavier terpenes that dominate most tent lines.
To a seed buyer the word does two things. When a listing names terpinolene among the leading aromas, the line most likely carries real old-sativa genetics whatever the label claims. And where the grower wants that profile to still be there to the jar, the cure is going to be slow and cool; a warm dry turns a terpinolene line into something that smells of very little and no trace of what the pack described.
Foxtailing (and when it is not a fault)
The tendency of certain flowers to push out new bud growth on top of old ones, producing spired, open buds instead of dense ones. In most indica-leaning lines it is a stress response, typically caused by light that is too close or a room too high, and the standard response is to correct the room.
In many sativas, especially Southeast Asian and some Haze hybrids, it is genetic and will occur in a perfect room. A new sativa grower often spends weeks hunting a problem that was never a problem, dropping lights and heat only slowing a long plant further. The breeder rarely warns which kind to expect; the lineage usually does.
Latitude (outdoor sativas)
The single number that determines whether a sativa will finish outdoors, and one that no pack prints. Long-flowering plants require a run of shortening days to go on long enough to let the plant finish; at high latitudes the frost arrives first, and the grower harvests an half-finished plant in the end of October or else watches it to mould in November. A closer to the equator, within a northern hemisphere, the later the window stretches, and coastal or low-latitude growers can finish lines that northern gardens never will.
The practical reading of a seed listing: an “outdoor” sativa finishing date is stated for the breeder’s home latitude, normally somewhere in southern Europe or the west coast of the United States, and every step north of that moves the date later into the frost. A grower above roughly the fiftieth parallel who is after a true sativa outdoors is looking for an autoflower or a greenhouse, and not a longer summer.
