Sativa Seeds, Term by Term

Sativa seeds arrive with more vocabulary around them than any other kind of cannabis seed, and most of it says one thing to a botanist, another to a seed company and something different again 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 one of those senses: a flowering time read as a promise, a “sativa-dominant” label read as a statement of character, a landrace bought as if it were a tent-bred hybrid. The entries below are written with the range at https://hazesativaseeds.com to hand as the concrete examples, since it leans strongly towards the classic end of the spectrum and that is where the words matter most; the meanings though apply to any sativa seed from any seller. They are given in no special order, because not one of them makes sense on its own without the rest.

Intersex tendency

The appearance of male flowers on a female plant, typically towards the end in flower and frequently under stress. Every cannabis population has a degree of capacity to do; long-flowering plants show it more, and the reason is a plain reason: sixteen weeks of flower is fourteen weeks of exposure for a timer leak, a heat spike or a late watering that can trigger it going, and an plant plant has already waited beyond its natural end frequently produces a few desperate pollen flowers on its own in a last attempt to make seed.

None of these means a sativa line unstable as a matter of nature; it means the room’s discipline count over longer. Light-tight tents, stable conditions and harvesting when the plant is ready rather than a week after take away the greater part of the problem. A listing that mentions a breeder tests parents for hermaphrodite tendency is saying something more for a long-flowering line than on any other category.

Equatorial (the twelve-hour problem)

Refers to plants out of latitudes in which daylength barely varies across the year, which means where the plant does not evolved a strong reaction to changing days. These plants often flower reluctantly under a standard twelve-hour light cycle, since twelve hours is, for them, an ordinary day and not a signal.

The working response, passed down among sativa growers over decades, is to cut the light further: eleven hours, sometimes ten, particularly during the final weeks. It loses a yield yield and gains a earlier clearer end. A listing that uses “equatorial” is telling you this in one word, and a grower who takes it as a note on geography misses the instruction inside it.

Latitude

The single number that determines whether a sativa will finish outdoors, and one no pack prints. Long-flowering plants require the autumn days to go on late enough for the plant to finish; at northern latitudes the frost comes before that, and the grower cuts an unripe plant in the end of October or else watches it rot in November. A further to the equator, in the northern hemisphere, the later the season stretches, and Mediterranean or subtropical gardens can ripen lines that temperate growers cannot.

The usable reading for a seed pack: an “outdoor” line finishing date is given for the breeder’s home latitude, normally somewhere within temperate Europe or the western United States, and each step further north of that moves the date back towards the frost. A grower above roughly the fiftieth parallel that is after a true sativa outdoors needs to be looking for a sativa autoflower or else a covered space, and not a better summer.

Foxtailing (and when it is not a fault)

The habit of certain flowers to push out new bud growth on top of existing ones, producing towered, open buds rather than round ones. In most tent-bred strains it is a stress response, usually from light too close or temperatures that is too high, and the standard response is to fix the cause.

In many sativas, above all Southeast Asian and certain Haze lines, it is built in and is going to happen under a flawless room. A new sativa grower frequently wastes a month chasing a fault that is not a problem, dropping lights and temperatures and slowing a long flower further. The breeder seldom warns which type you should expect; the lineage generally does.

Stretch (the doubling)

The burst of vertical growth which follows the change to flowering. Indica-leaning plants add half again; sativas commonly double, and some landrace lines triple. The stretch lasts two to five weeks and cannot be halted after it has started, only bent sideways by training.

In tent terms, a stretch figure is the fact worth read before deciding when to switch. A sativa flipped at sixty centimetres in a two-metre tent is at the lamp by week four of flower; one switched at thirty centimetres has room. Growers moving from indica stock almost always switch too late the first time, and the consequence is visible on the ceiling of the tent.

Terpinolene (the “sativa smell”)

A aromatic compound present in high proportion in a lot of old sativa lines and responsible for most of what people describe as a “sativa” aroma: fresh, piney, citrus and faintly sweet all at once. It is fragile, driven off easily through hot drying, and it degrades faster during storage than the earthier terpenes which dominate most tent lines.

To a seed buyer the name earns two jobs. Where a listing lists terpinolene as the leading terpene, the line probably carries real old-sativa ancestry regardless of what the label claims. And when the grower are after that smell to still be there by the jar, the cure has to be cool and cool; a fast drying room flattens a terpinolene sativa to a flower that smells of very little and leaves nothing of what the pack promised.

Flowering time

The figure of weeks between the onset of flowering and maturity, which is the single most frequently misread figure on a sativa pack. For photoperiod seed it is measured from the day the light drops to twelve hours, rather than from sowing, so a “fourteen-week” sativa started with a eight-week vegetative stage is a twenty-two-week plant. Breeders additionally give the shorter end of the spread, because the longer end sells fewer seed.

Long-flowering plants run everywhere from ten weeks to more than twenty, and the longest strain in the Haze Sativa Seeds range comes in at about 16 weeks after the flip. The catalogue can be filtered by that number, which is a sensible first step if you have a room with a tight schedule. A grower who allows four weeks on top of whatever the pack states is rarely disappointed.

Sativa-dominant (the label)

A catalogue term and not a measurable one. The phrase usually means that more of a hybrid’s parents were classed as sativa according to whoever drafted the listing, and occasionally means no more than that the buds are airier or the aroma brighter than the same breeder’s other lines.

The experience people connect with the word, lively instead of sedating, is governed more by terpene profile and by THC balance than it is by ancestry, and plenty of “sativa-dominant” hybrids deliver a flat couch effect and a good number of indica-labelled lines deliver the reverse. For a grower the percentage is useful as a rough hint to growth habit, flowering time and stretch; as a predictor to how it feels it is next to worthless without the aroma description.

Landrace

A population of plants shaped through centuries to a particular region by local climate and climate together, and not by modern selection. Thai, Thai, Malawian and Oaxacan stock are the classic sativa examples. A landrace is variable, rather than a one plant: inside a pack the flowering times, finishing times and aromas spread widely than in a tent-bred line, and this variation is the whole value of keeping one.

The trap is treating a landrace like a modern product. It carries habits that made sense in an equatorial field, including a frame that no tent can hold and a flowering rhythm tuned to an equatorial daylength the majority of growers never provide. “Heirloom” in a listing generally refers to a landrace that has been reproduced away from its origin for some generations, often with light selection for tent conditions; it is nearer to usable but nonetheless far from uniform. A seller offering “landrace” that does not give an origin point and a reproduction history is applying the word as a flavour, and the seeds should be judged accordingly.