Cannabis seed collection
High THC cannabis seeds in Australia
High THC seeds are for growers who want the most potent result their patch can produce. This range collects strains that consistently test above 20% THC, with several pushing past 25% when grown well, in feminised and autoflower form. Potency isn't just genetics — Australian sun and long summer days give these strains the intense light they need to reach their full potential, which is why outdoor grows in Queensland, Western Australia and inland New South Wales can rival indoor results. Each listing shows the tested THC range, the terpene profile that shapes the effect, and how the strain handles heat, so you can pick something that delivers strength without wilting in a January heatwave. Expect dense, resin-heavy flowers that reward careful drying and curing.
Cannabis seed results
Runtz Auto
Runtz Auto is an autoflower seed with a balanced indica-sativa profile and sweet, fruity, herbal and candy-like flavours.
From $89.00
Russian Assassin
Russian Assassin is a feminised, indica-phenotype cultivar with documented Headband x Skywalker lineage and an earthy flavour note.
Santa Maria
Santa Maria is a feminised, sativa-reported cultivar linked to Silver Pearl, with sweet citrus notes and 15–21% THC.
Satellite OG
Satellite OG is a feminised, indica-described cultivar with OG Kush x SFV OG lineage, 20% THC and earthy, pine flavour notes.
Schrom
Schrom is a feminized cultivar described as sativa, with citrus and pine notes and reported THC values of 20–21%.
Serious Happiness
Serious Happiness is a feminised hybrid cultivar with documented AK-47 x Warlock lineage and citrus and berry flavour notes.
Shiatsu Kush
Shiatsu Kush is a feminised hybrid cultivar profile with 22–23% THC and documented earthy and sweet flavour notes.
Shiskaberry
Shiskaberry feminised seeds offer an indica-dominant photoperiod profile, with sweet berry flavours and beginner-friendly cultivation.
From $79.00
Shoreline
Shoreline is a feminised cultivar with a reported hybrid phenotype, citrus and sweet notes, and THC listed at 20–23%.
Silverfalls Kush
Silverfalls Kush is a feminised, hybrid-profile cultivar with reported earthy, sweet and berry aroma descriptors.
Sin City Kush
Sin City Kush is a feminised cultivar with LVPK x Snow Dog lineage, a reported indica phenotype and pine, sweet and berry notes.
Sirius Black
Sirius Black feminised photoperiod seeds offer a balanced indica-sativa profile with citrus, sweet, earthy and woody flavours.
From $79.00
Skywalker Alien
Skywalker Alien is a feminised hybrid cultivar described as earthy, with catalogue cannabinoid figures of 18–24% THC and 0–1% CBD.
Skywalker OG
Skywalker OG feminised photoperiod seeds have an indica-dominant profile with earthy pine, lemon and diesel flavours.
From $89.00
Skywalker OG Auto
Skywalker OG Auto autoflower seeds have an indica-dominant profile with earthy, pine, sweet, spicy and fruity flavours.
From $89.00
Sleepy Joe OG
Sleepy Joe OG feminised photoperiod seeds offer a balanced 50/50 profile, strawberry, lemon and citrus flavours, and 8–9 week flowering.
From $89.00
Sleepy Joe OG Auto
Sleepy Joe OG Auto is an autoflower seed with a balanced indica-sativa profile and strawberry, lemon, skunk and garlic flavours.
From $89.00
Slurricane
Slurricane feminised seeds offer an indica-dominant photoperiod profile with sweet berry, grape, vanilla and earthy flavours.
From $99.00
Smelliot
Smelliot is a feminised hybrid cultivar profile with citrus and sweet flavour notes and a reported THC range of 16–20%.
Snoop Dogg OG
Snoop Dogg OG feminised seeds offer an indica-dominant profile with citrus, diesel, earthy, pine, skunk and sweet flavours.
From $99.00
Snoop's Dream
Snoop's Dream is a feminised hybrid described as Master Kush x Blue Dream, with 19–23% THC and an earthy, pine, sweet and berry profile.
Snow Leopard
Snow Leopard is a feminised, indica-reported cultivar with listed Snow Lotus genetics and an earthy, pine and spicy aroma profile.
Snow Monster
Snow Monster is a feminised, indica-reported cultivar with Starfighter x The White lineage and earthy, sweet flavour notes.
Snow White
Snow White feminised seeds offer an indica-leaning profile with earthy, sweet citrus flavours and an 8–10 week flowering period.
From $79.00
Snow White Auto
Snow White Auto is an autoflower cultivar described as a White Widow-derived hybrid, with 16–20% THC and citrus, earthy and pine notes.
Somango XXL
Somango XXL feminised seeds offer an indica-dominant hybrid profile with mango, fruity and incense flavours, flowering in 8–9 weeks.
From $79.00
Sour Amnesia Auto
Sour Amnesia Auto is an autoflower cultivar with documented Amnesia x Sour Diesel lineage and a citrus flavour descriptor.
Sour Bubba
Sour Bubba is a feminised, indica-reported cultivar with Bubba Kush and Sour Diesel lineage and an earthy, pine and berry profile.
Sour Cheese
Sour Cheese is a feminized hybrid listed as Cheese × Sour Diesel, with a documented THC range of 18–21%.
Sour Diesel
Sour Diesel feminised seeds offer a sativa-dominant profile with diesel, citrus, pine and herbal flavours, suited to intermediate growers.
From $79.00
Sour Diesel Auto
Sour Diesel Auto is a sativa-leaning autoflower with pungent diesel, citrus and earthy flavours, suited to hot, dry or temperate climates.
From $79.00
Sour Diesel x OG Kush
Sour Diesel x OG Kush is a feminised, indica-leaning cultivar with diesel, fruit and lemon notes and reported THC of 20–22%.
Sour Mac
Sour Mac is a feminized, sativa-leaning cultivar with citrus, earthy and woody notes and an 8–10 week flowering period.
Space Queen
Space Queen is a feminised hybrid cultivar with documented Cinderella 99 x Romulan lineage and a sweet flavour profile.
Stardawg
Stardawg is a feminised, sativa-leaning cultivar with diesel, pine and citrus flavours, suited to intermediate growers.
From $79.00
Stardawg Auto
Stardawg Auto is a sativa-leaning autoflower seed with citrus, pine, lemon, diesel and earthy flavours, suited to hot, dry or temperate climates.
From $89.00
Strawberry Banana
Strawberry Banana feminised seeds offer an indica-dominant profile with sweet strawberry, banana, tropical and earthy flavours.
From $79.00
Strawberry Banana Auto
Strawberry Banana Auto is an indica-dominant autoflower with sweet, earthy tropical flavours and a beginner-friendly 10–12 week flowering period.
From $79.00
Strawberry Cough
Strawberry Cough is a feminised, sativa-dominant photoperiod cultivar with sweet strawberry, berry, earthy and spicy flavours.
From $99.00
Strawberry Cough Auto
Strawberry Cough Auto is a sativa-dominant autoflower with sweet strawberry, fruity and skunky flavours, suited to beginner growers.
From $99.00
Strawberry Fields
Strawberry Fields is a feminised cultivar with Strawberry Banana x Tangie lineage and a reported indica phenotype.
Strawberry Kush
Strawberry Kush feminised seeds offer an indica-dominant profile with sweet strawberry, earthy, pine and creamy flavours.
From $79.00
Strawberry Lemonade
Strawberry Lemonade is a feminised cultivar with documented Strawberry Cough × Lemon OG lineage and citrus and berry flavour notes.
Sundae Driver
Sundae Driver feminised photoperiod seeds offer a balanced 50/50 hybrid profile with sweet grape, cream and vanilla flavours.
From $99.00
Sunrise
Sunrise is a feminised cultivar with documented Sherbert x Purple Fig lineage, a reported indica phenotype and 23% THC.
Sunset Sherbet
Sunset Sherbet feminised photoperiod seeds offer an indica-dominant profile with sweet berry, fruity citrus and lemon flavours.
From $79.00
Super Boof
Super Boof feminised seeds offer a balanced photoperiod hybrid with sweet citrus, berry and grape flavours, flowering in 8–9 weeks.
From $99.00
Super Boof Auto
Super Boof Auto is a balanced autoflowering hybrid with sweet cherry, fruity and tropical flavours, suited to intermediate growers.
From $99.00