Sativa seeds arrive with more jargon attached than any other kind of cannabis seed, and a good deal of it says one thing to a botanist, something else to a breeder and a third to the person standing in front of the listing. A disappointing sativa grow usually goes back to a word that was understood in the wrong sense: a flowering time taken as a fixed number, a “sativa-dominant” tag read as a description of character, a landrace chosen as if it were a tent-bred hybrid. The entries below were put together with the range at https://hazesativaseeds.com open for the concrete examples, since it runs heavily to the long-flowering end of the category where the words carry the most weight most; the meanings themselves hold to any sativa seed from any shop. They are in no special order, since not one of them makes usable on its own without the others.

Intersex tendency

The production of male flowers on a female plant, typically towards the end in flower and often in response to stress. Every cannabis line carries some capacity for do; long-flowering lines show it more, and the reason is a simple reason: fourteen weeks of flower is sixteen weeks of opportunity for a timer leak, a temperature spike or a missed watering that can set it going, and an old that has already gone past its natural end often produces a few late male sacs on its own as a final attempt to make seed.

None of this makes a sativa line unstable as a matter of nature; it means the grower’s discipline count over a longer stretch. Light-tight room, steady temperatures and harvesting the moment the plant is done and not two week after take away most of the risk. A listing that states a breeder tests parents for hermaphrodite traits is worth worth hearing for a sativa than on anything other category.

Equatorial

Describes lines out of regions where daylength barely varies through the year, and where the plant never develop a sharp response to shortening days. These lines frequently start flowering reluctantly at a standard twelve-hour light cycle, because twelve hours is, for them, an ordinary day rather than a signal.

The working fix, handed down among sativa growers over decades, is to shorten the light more: eleven hours, sometimes ten, especially in the last weeks. It loses some little yield and buys a more decisive finish. A listing that uses “equatorial” is warning you about this with one word, and a grower that takes it as a note on origin misses the point inside it.

Landrace

A population of plants adapted over generations to one place by local climate and climate alike, rather than by modern selection. Colombian, Thai, Malawian and Oaxacan stock are the sativa cases. A landrace is variable, not a one plant: within a pack the flowering times, finishing times and aromas range far more than in any tent-bred line, and that spread is the whole value of keeping one.

The trap is treating a landrace as a modern hybrid. It brings traits that made sense in an open field, including a frame no tent can contain and a flowering clock set to an daylength most growers never offer. “Heirloom” on a listing usually means a landrace that has been grown out somewhere for some generations, often with a degree of selection towards indoor conditions; it is closer to manageable but still far from uniform. A seller offering “landrace” that does not give an origin point and a reproduction history is using the word loosely, and the pack should be priced accordingly.

Latitude

The single number that determines if a sativa will ripen outdoors, and one that no pack prints. Long-flowering plants need a run of shortening days to continue late enough for the plant ripen; in high latitudes the frost comes first, and the grower harvests a unripe plant in late October or watches it rot in November. A further to the equator, in the northern hemisphere, the longer the window stretches, and Mediterranean and low-latitude growers can finish plants that temperate gardens cannot.

The usable rule of a seed pack: an “outdoor” line harvest date is given for the breeder’s own latitude, usually somewhere in southern Europe or the west coast of the United States, and every degree further north of it pushes the date later into the frost. A grower north of about the fiftieth parallel that wants a true sativa in the garden needs to be looking for a sativa autoflower or else a greenhouse, and not a longer summer.

Terpinolene (the “sativa smell”)

A aromatic compound present in high proportion in many old sativa strains and accounting for much of what people mean as a “sativa” aroma: fresh, piney, citrus and faintly sweet all at once. It is fragile, driven off quickly by fast drying, and terpinolene fades faster during the cure than the heavier terpenes that lead indica-leaning lines.

For a seed buyer the word does two jobs. When a listing lists terpinolene as the lead terpene, the line probably has real Haze-era genetics regardless of what the percentage says. And when the you wants that profile to still be there to the jar, the cure is going to be slow and slow; a warm dry turns a terpinolene line to a flower that smells of very little and leaves nothing of what the pack described.

Stretch (the doubling)

The burst of upward growth which comes after the change to flowering. Indica-leaning plants gain around half their height again; sativas routinely double, and a few landrace types triple. The stretch lasts two to four weeks and will not be halted after it has started, only bent sideways by training.

In tent terms, the stretch figure is the fact worth reading before choosing when to flip. A sativa switched at sixty centimetres in a standard tent is touching the lamp by week four of flower; one switched at thirty centimetres centimetres has room. Growers coming from indica strains nearly always switch far too late the first time, and the lesson is written on the ceiling of the tent.

Foxtailing

The tendency of some flowers to grow fresh bud clusters on top of old ones, producing towered, irregular buds instead of dense ones. In the majority of indica-leaning strains it is a stress symptom, typically from light too close or temperatures that is too high, and the advice is to correct the room.

In a good number of sativas, especially Southeast Asian and certain Haze lines, it is built in and will occur in a perfect room. A new sativa grower frequently wastes a month chasing a fault that is a problem, lowering lights and heat and delaying a slow plant further. The breeder seldom warns which type you should expect; the lineage generally does.

Flowering time

The figure of weeks between the start of flowering and maturity, which is the single most misread figure on a sativa pack. For photoperiod seed it is measured from the day the light drops to twelve hours, rather than from germination, so a “fourteen-week” sativa grown after an ordinary vegetative stage is a five-month plant. Seed companies also quote the shorter end of the range, because the other end moves less seed.

Long-flowering lines run everywhere from ten weeks to well over twenty, and the slowest line in the Haze Sativa Seeds range is at around 16 weeks after the switch. The catalogue can be sorted by that number, which is the sensible first pass for a room on a tight schedule. A grower who adds four weeks to whatever the pack says is seldom caught out.

Sativa-dominant (the label)

A marketing term rather than a botanical one. It generally indicates that more of a hybrid’s parents are classed as sativa according to whoever wrote the description, and sometimes means nothing more than a certain the buds are longer or the smell brighter than the that breeder’s indica-labelled releases.

The effect people connect with the word, lively rather than sedating, is governed far more by terpene chemistry and the THC content than by the sativa fraction, and a good number of “sativa-dominant” hybrids deliver a heavy couch effect while plenty of indica-labelled stock do the reverse. For a grower the percentage is useful for a rough hint to growth habit, flowering time and stretch; as a guide to effect it is next to useless without the terpene description.