Genetics
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Pure sativa retail shopping label — not genetics

Koster Strain

Koster is a pure sativa strain. 91-day flowering.

Median THC
Flowering
91 days
Breeder releases
1
Avg rating

Indica / Sativa — retail shopping guide

Sativa 100%

Indica, sativa and hybrid are a retail shopping convention — not a reliable guide to genetics or effects. When researchers analysed 89,923 commercial samples across six states, these labels did not predict a plant’s terpene or cannabinoid profile, and a genome-wide study found sativa- and indica-labelled plants to be genetically indistinct (PLOS ONE 2022; Nature Plants 2021). The labels are so fluid that AK-47, a hybrid, won “Best Sativa” at the 1999 Cannabis Cup and “Best Indica” four years later. For an accurate, genetics-true picture, see the chemotype above.

Genetics & Lineage

Parents

No lineage recorded.

Descendants

No lineage recorded.

Breeder releases (1)

BreederTHCFloweringSeedsRating
The Landrace Team91dregular

About Koster

Genetics: Koster (S. Africa) Source: via TLT member Latitude: 25° S Elevation: 0 – 1700 m.a.s.l. Veg: 12 – 15 weeks Flower: 12 – 14 weeks Height: 180 – 200 cm Phenotypes: 4 Effect: potent, euphoric, motivating, energetic, very psychoactive, lysergic Aromas: mint, anise, wood, sweet oranges Taste: woody, minty Yield: medium Characteristics: high humidity resistant, high thc content Grow type: outdoors, greenhouse, indoor Some local people from the north in Koster kept this line for decades in an intact and perfect way protecting as much diversity as possible, nowadays growing cannabis in S.Africa is very difficult, commercial hybrid lines are usually susceptible to humidity. The Koster is a perfect variety because it is resistant to pests and humidity. Fast, short-flowering sativa, aromas of orange, wood, mint and anise. Medium-high stature with good growth, vigour, resin production and high resistance to climates with high humidity. Vegetative stage from 12 weeks to 15 weeks for the longest phenotypes. Abundant foliage with conical structures, we have found 4 different phenotypes, one of them forms a main apical tower that stands out, medium internodal spaces that become very short

Frequently asked questions

Is Koster indica or sativa?
Koster is classified as pure sativa.
How long does Koster take to flower?
Koster flowers in about 91 days.
Is Koster available as feminized or autoflowering seeds?
Koster is offered as: regular.