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
Grimace
Grimace is a feminized cultivar with documented Purple Urkle and Face Off OG Bx1 lineage, plus sweet and berry aroma notes.
Guard Dawg
Guard Dawg is a feminised, indica-reported cultivar associated with Abusive OG genetics and earthy, sweet flavour notes.
Gumbo
Gumbo feminised seeds offer an indica-leaning profile with sweet, fruity candy and berry flavours, suited to intermediate growers.
From $99.00
Gush Mints
Gush Mints feminised seeds offer an indica-leaning profile with mint, spice and lemon flavours, suited to intermediate growers.
From $79.00
Gush Mints Auto
Gush Mints Auto autoflower seeds offer an indica-leaning profile with sweet mint, cookie and earthy flavours, suited to intermediate growers.
From $99.00
Gutbuster
Gutbuster is a feminised, indica-reported cultivar with Cookies and Cream x Kimbo Kush lineage and earthy, sweet berry notes.
Hawaiian
Hawaiian is a feminised cultivar described as sativa, with sweet citrus notes and a reported THC range of 18–24%.
Hawaiian Snow
Hawaiian Snow is a feminised, sativa-dominant cultivar with earthy, floral and pine notes and a creative character.
Haze #1
Haze #1 feminised seeds offer a 90% sativa profile with earthy, floral, lemon and haze flavours, suited to expert growers.
From $79.00
Haze #1 Regular
Haze #1 regular seeds offer an 80% sativa profile with sweet, sour and spicy flavours, suited to intermediate growers.
From $79.00
Haze Auto
Haze Auto is a sativa-dominant autoflower with sweet, earthy and woody flavours, suited to intermediate growers.
From $79.00
Head Cheese
Head Cheese is a feminised hybrid documented as UK Cheese x 707 Truthband, with reported THC figures of 21–26%.
Headband
Headband feminised seeds offer an indica-leaning profile with diesel, lemon, pine and sweet berry flavours for intermediate growers.
From $99.00
Hellfire OG
Hellfire OG feminised seeds offer an indica-dominant profile with citrus, diesel and pine flavours, suited to intermediate growers.
From $89.00
Hellfire OG Auto
Hellfire OG Auto is an autoflowering, likely indica-dominant cultivar with citrus, diesel, pine and pepper flavours.
From $89.00
Hindu Kush Auto
Hindu Kush Auto is an indica-dominant autoflower with woody, sweet, pine and earthy flavours, suited to beginners and varied climates.
From $79.00
Humboldt
Humboldt feminised seeds offer an indica-dominant profile with citrus, earthy and sweet notes, suited to hot, dry or temperate climates.
From $89.00
Humboldt Auto
Humboldt Auto is an indica-leaning autoflower with earthy, woody and pine flavours, suited to beginner growers in hot, dry or temperate climates.
From $99.00
Humboldt Dream
Humboldt Dream is a feminised, indica-reported cultivar with listed citrus, sweet and berry notes and THC of 20–27%.
Humboldt Headband
Humboldt Headband is a feminised cultivar with a reported indica phenotype, berry flavour notes and THC levels of 18–24%.
Ice Cream
Ice Cream is a feminised, hybrid-profile cultivar with a sweet flavour description and reported THC levels of 18–20%.
Ice Cream Cake
Ice Cream Cake feminised seeds offer an indica-dominant profile with sweet, creamy, vanilla, earthy and nutty flavours.
From $79.00
Ice Cream Cake Auto
Ice Cream Cake Auto is an indica-dominant autoflower seed with sweet, creamy vanilla and earthy flavours, suited to intermediate growers.
From $99.00
Illuminati OG
Illuminati OG is a feminised, indica-described cultivar with a reported pine flavour and THC range of 18–25%.
Industrial Plant
Industrial Plant is a feminised hybrid listed as Afghani × Thai, with pine and berry notes and a reported THC range of 14–20%.
Ingrid
Ingrid is a feminized cultivar listed as UK Cheese x Hash Plant, with an earthy flavour descriptor and a reported indica phenotype.
Irish Cream
Irish Cream is a feminised, indica-dominant cultivar with floral, nutty and vanilla flavours and subjectively powerful, relaxed effects.
Island Sweet Skunk
Island Sweet Skunk feminised seeds have an 80% sativa profile with sweet, spicy and skunky flavours, suited to intermediate growers.
From $79.00
J1
J1 is a feminised hybrid cultivar documented as Skunk 1 x Jack Herer, with citrus, earthy and pine flavour descriptors.
Jack Frost
Jack Frost is a feminised hybrid cultivar documented as White Widow x Jack Herer, with citrus, earthy and pine aroma notes.
Jack Herer
Jack Herer feminised seeds offer a slightly sativa-leaning profile with haze, citrus, pine and spice flavours.
From $79.00
Jack Widow
Jack Widow feminised seeds offer a 60% sativa profile, with lemon, incense, skunk and spice flavours and a 9–10 week flowering period.
From $79.00
Jack Widow Auto
Jack Widow Auto autoflower seeds offer a balanced indica-sativa profile, with earthy, herbal, sweet and woody flavours.
From $79.00
Jacked-Up
Jacked-Up is a feminised hybrid with documented Jack Herer x Timewreck lineage and reported earthy and berry flavour notes.
Jamaican Dream Auto
Jamaican Dream Auto is an autoflower cultivar with Jamaican genetics, a reported sativa phenotype and an earthy flavour profile.
Jawa Pie
Jawa Pie is a feminised, indica-reported cultivar documented as Key Lime Pie × Alien Rift, with a citrus flavour descriptor.
Jealousy
Jealousy feminised seeds offer a balanced 50/50 sativa-indica profile, with sweet, creamy citrus flavours and an 8–10 week flowering time.
From $79.00
Jedi Kush Auto
Jedi Kush Auto is an autoflower seed type with documented Death Star x SFV OG Kush lineage and earthy, pine flavour notes.
Jelly Roll
Jelly Roll is a feminized, indica-reported cultivar documented as Grapefruit x God Bud, with citrus and berry flavour notes.
Jesus OG Auto
Jesus OG Auto is an autoflower cultivar described as indica, with 17–24% THC and a reported citrus and earthy flavour profile.
Jet Fuel
Jet Fuel feminised seeds offer a sativa-dominant profile with pungent diesel and pine flavours, suited to intermediate growers.
From $89.00
Jillybean
Jillybean is a feminised hybrid cultivar documented as Space Queen x Orange Velvet, with a citrus flavour descriptor.
Juicy Fruit
Juicy Fruit is a feminised hybrid cultivar listed as Afghani × Thai, with a sweet flavour and a reported THC range of 14–20%.
Kali Mist
Kali Mist feminised seeds offer a sativa-dominant profile with citrus, incense, spicy, pungent and sweet flavours for intermediate growers.
From $99.00
Kandahar
Kandahar is a feminised, indica-described cultivar with Afghani × Afghan Skunk lineage and an earthy flavour profile.
Khalifa Kush
Khalifa Kush feminised seeds offer an indica-dominant profile with pine, lemon, citrus, earthy and sour flavours.
From $99.00
Khalifa Kush Auto
Khalifa Kush Auto is an indica-dominant autoflower with citrus, diesel, earthy, pine and spicy flavours for intermediate growers.
From $99.00
Kilimanjaro
Kilimanjaro is a feminised, African-genetics cultivar with a reported sativa phenotype and citrus, earthy and spicy notes.