Holiday Super Sale: 20% Off orders of $99 or more - use code XMAS20CSI|FREE U.S. SHIPPING
  • SUNBURN x GUPTA KUSH
    The Sunburn (Island Sweet Skunk x Rug Burn OG) strain is an inspiring, strong, and high-yielding Sativa that is dominated by the Island Sweet Skunk’s positive vibes and crystally, lime-green buds. It tends towards an active, bright, and adventurous experience. We took our favorite phenotype of the original Sunburn and crossed it with the Gupta Kush to increase the strength and stability of its genetics. Through this process it also gained an earlier finish, which makes it a great Sativa for growing outdoors. It has a vigorous growth habit and a longer node length, so lots of multi-topping is key to increased yields.
    6 seeds per package  
  • ANIMAL COOKIES x SINMINT COOKIES
    Animal Mints is a hybrid marijuana strain made by crossing Animal Cookies with SinMint Cookies. Animal Mints produces a strong body and head high, making it ideal for after work and evening use. This strain features a sweet, pungent aroma that is minty on the exhale. Medical marijuana patients choose this strain to help relieve symptoms associated with stress.
    6 seeds per package
  • GRANDADDY PURPLE x F1 DURB
    Cherry Pie's parents are Granddaddy Purple and F1 Durb. With buds that are dense and full of orange hairs and a touch of purple, this hybrid strain smells of sweet and sour cherry pie. Leafly reviewers tell us that Cherry Pie’s effects include feeling giggly, happy, and euphoric
    6 seeds per package
  • DURBAN x UNKNOW INDICA
    Dutch Passion White Widow seeds are very consistent and easy to grow in any medium. It is an incredibly strong and potent strain with a reputation for being one of the strongest varieties ever created. The buds are hard and compact and completely covered in a thick white layer of trichomes. White Widow was created by crossing Brazilian and Indian strains. It has a powerful and pungent scent. If you are looking for the original 80's and 90’s White Widow you have come to the right place. The authentic smell, taste and unmistakably strong high are the reason our customers keep coming back for this strain.
    6 seeds per package
  • GMO x MENDO BREATH
    Garlic Breath is an indica-dominant hybrid marijuana strain made by crossing GMO with Mendo Breath. This strain features a pungent and savory flavor profile that may remind you of freshly-peeled garlic with spicy undertones. Garlic Breath produces physically relaxing effects that gradually become sedating as you continue to consume. Medical marijuana patients choose this strain to help relieve symptoms associated with insomnia, stress and depression.
    6 seeds per package
  • SKUNK #1 x UNKNOWN INDICA
    Green Alien, also known as "Green Crack" and "Mango Crack," is a potent sativa marijuana strain made by crossing Skunk #1 with an unknown indica. This strain is beloved by many consumers for its energizing effects. Green Alien’s sharp energy and focus as it induces an invigorating mental buzz that keeps you going throughout the day. With a tangy, fruity flavor redolent of mango, Green Alien is a great daytime strain that may help consumers fight fatigue, stress, and depression.
    6 seeds per package
  • SHERBERT BX1 x GELATO 41
    Jealousy is a hybrid weed strain made by crossing Sherbert Bx1 with Gelato 41. Jealousy is known for its balancing effects. Reviewers on Leafly who have smoked this strain say it makes them feel mentally relaxed but physically energetic. Jealousy can test into the high 20s in terms of THC percentage, ideal for experienced cannabis consumers. The dominant terpene of this strain is caryophyllene, which is often associated with a fuel aroma.
    6 seeds per package
  • OG Kush, also known as "Premium OG Kush," was first cultivated in Florida in the early ‘90s when a marijuana strain from Northern California was supposedly crossed with Chemdawg, Lemon Thai and a Hindu Kush plant from Amsterdam. The result was a hybrid with a unique terpene profile that boasts a complex aroma with notes of fuel, skunk, and spice. OG often refers to “Original Gangster,” or "Ocean Grown" indicating either the strain’s authenticity or intensity. The genetic backbone of West Coast cannabis varieties, OG Kush arrived in Los Angeles in 1996 when Matt “Bubba” Berger brought it (along with “The Bubba,” which was later used to create the famed Bubba Kush) from Florida to legendary cultivator Josh D. Since then, OG Kush has become a worldwide staple used to create numerous famous strains like GSC and Headband. There are many different phenotypes of OG Kush weed, including Tahoe OG, SFV OG, and Ghost OG.
    6 seeds per package
  • OG Kush, also known as "Premium OG Kush," was first cultivated in Florida in the early ‘90s when a marijuana strain from Northern California was supposedly crossed with Chemdawg, Lemon Thai and a Hindu Kush plant from Amsterdam. The result was a hybrid with a unique terpene profile that boasts a complex aroma with notes of fuel, skunk, and spice. OG often refers to “Original Gangster,” or "Ocean Grown" indicating either the strain’s authenticity or intensity. The genetic backbone of West Coast cannabis varieties, OG Kush arrived in Los Angeles in 1996 when Matt “Bubba” Berger brought it (along with “The Bubba,” which was later used to create the famed Bubba Kush) from Florida to legendary cultivator Josh D. Since then, OG Kush has become a worldwide staple used to create numerous famous strains like GSC and Headband. There are many different phenotypes of OG Kush weed, including Tahoe OG, SFV OG, and Ghost OG.
    6 seeds per package
  • COOKIES & CREAM x SECRET WEAPON
    Oreoz, also known a "Oreo Cookies" and "Oreos," is a potent hybrid marijuana strain made by crossing Cookies and Cream with Secret Weapon. This strain produces a long-lasting and relaxing high. Consumers should take caution as the high potency of Oreoz may be overwhelming to those new to cannabis. This strain has an aroma reminiscent of campfire s'mores, with extra delicious hints of chocolate and diesel. Medical marijuana patients use Oreoz to help relieve symptoms associated with appetite loss, insomnia, chronic stress and depression.
    6 seeds per package
  • PURPLE THAI x HAZE
    Purple Haze is a sativa marijuana strain popularized by Jimi Hendrix’s 1967 classic song, Purple Haze. This strain delivers a dreamy burst of euphoria that brings veteran consumers back to their psychedelic heyday. This nostalgic sativa staple remains cherished for its high energy cerebral stimulation that awakens creativity and blissful contentment throughout the day. Purple Haze is believed to have descended from parent strains Purple Thai and Haze, which pass on a mix of sweet and earthy flavors underscored by notes of berry and sharp spice. Purple Haze buds typically acquire vibrant hues of lavender that further justify the naming of this strain.
    6 seeds per package
  • SUPER LEMON HAZE x GUPTA KUSH
    We took the famed Super Lemon Haze from Greenhouse Seeds and crossed it with the Gupta Kush to increase its growth habit and yield. The resulting Slazerbeam strain creates succulent, crystal-packed buds that lean more towards the Super Lemon Haze structure and node length. Slazerbeam is dominated by the sweet lemony zest of the maternal line, though the lingering notes of the OG Kush come through in many plants. A very strong Sativa buzz, grounded by OG Kush roots. Slazerbeam experiences very strong growth in veg and appreciates a bit of extra micronutrients mid-flower. Some of the shorter phenotypes finish in the 7th week and can be a little slow to root, so be careful not to overwater them after transplant. The taller phenotype loves topping from an early age to increase bud sites.
    6 seeds per package
  • SUPER LEMON HAZE x GUPTA KUSH
    We took the famed Super Lemon Haze from Greenhouse Seeds and crossed it with the Gupta Kush to increase its growth habit and yield. The resulting Slazerbeam strain creates succulent, crystal-packed buds that lean more towards the Super Lemon Haze structure and node length. Slazerbeam is dominated by the sweet lemony zest of the maternal line, though the lingering notes of the OG Kush come through in many plants. A very strong Sativa buzz, grounded by OG Kush roots. Slazerbeam experiences very strong growth in veg and appreciates a bit of extra micronutrients mid-flower. Some of the shorter phenotypes finish in the 7th week and can be a little slow to root, so be careful not to overwater them after transplant. The taller phenotype loves topping from an early age to increase bud sites.
    6 seeds per package
  • SUPER LEMON HAZE x GUPTA KUSH
    We took the famed Super Lemon Haze from Greenhouse Seeds and crossed it with the Gupta Kush to increase its growth habit and yield. The resulting
    6 seeds per package
  • CLASSIC F1 WHITE WIDOW
    Dutch Passion White Widow seeds are very consistent and easy to grow in any medium. It is an incredibly strong and potent strain with a reputation for being one of the strongest varieties ever created. The buds are hard and compact and completely covered in a thick white layer of trichomes. White Widow was created by crossing Brazilian and Indian strains. It has a powerful and pungent scent. If you are looking for the original 80's and 90’s White Widow you have come to the right place. The authentic smell, taste and unmistakably strong high are the reason our customers keep coming back for this strain.
    6 seeds per package
  • GOLDEN GOAT x GUPTA KUSH
    To tame the spirited Golden Goat strain, and make it more suitable for high-production settings, we crossed it with the Gupta Kush in what we call the Chupacabra. Golden Goat’s skunkiness dominates in combination with darker Kush and sweet berry tones.The high is cerebrally stimulating and may be related to the feeling of a warm, cozy blanket on a cold winter’s day.  Most plants are mid-sized with one taller phenotype that loves to be topped heavily early in veg to increase bud sites. It may enjoy extending into the 9th week to finish, especially in hot environments (80+ degrees).
    6 seeds per package
  • TANGERINE SUNRISE x NINA LIMONE
    The Tangcicle strain is the combination of the ever-popular Tangerine Sunrise (ranked #6 in the Ten Best Marijuana Strains of 2014 by Westword) and the Nina Limone. The tangerine and lemon catalyze a vibrant citrus medley and a lightweight high that provides an invigorating delight to the senses. Tangcicle is a smooth, Sativa-leaning Hybrid with buds drenched in crystals and wrapped in citrus. This strain will finish earlier than a traditional Sativa and is a great plant for any environment.
    6 seeds per package
  • CINDERELLA '99 x NINA LIMONE
    Cindy Limone is a cross of Cinderella 99 (Shiva Skunk x Jack Herer) and Nina Limone (Super Lemon Haze x Rebel God Smoke) that yields a short-statured plant and carries a strong Sativa user experience. With aromas of sweet lemon and spicy citrus, Cindy Limone is often described as a spacy high, a.k.a. feeling highly creative with uplifted bursts of energy and increased alertness.  Shorter phenotypes are common with this strain, making it incredibly indoor- or outdoor-friendly.
    6 seeds per package
  • BANANA OG x SKYWALKER OG
    High potency Banana OG (35-37% THC) with dominant gassy nose and a sweet undertone. Heavy indica high. Most phenotypes produce chunky flowers with average height and manageable structure. The Crosswalker donor contributes high terpene content, seen up to 7-8% total, mercene dominant.  Exceptional plant for solventless extracts.
    6 seeds per package
  • BANANA OG x SKYWALKER OG
    High potency Banana OG (35-37% THC) with dominant gassy nose and a sweet undertone. Heavy indica high. Most phenotypes produce chunky flowers with average height and manageable structure. The Crosswalker donor contributes high terpene content, seen up to 7-8% total, mercene dominant.  Exceptional plant for solventless extracts.
    6 seeds per package
  • TROP COOKIES x CROSSWALKER
    Developed for extremely large flower structure and lower density that consistently passes to its offspring.  Observed resistance to bud rot, and produces potent, chem 91 leaning profile combined with the Skywalker OG undertone. Exceptional vigor and aggressive root development makes this line a top choice for breeding.
    6 seeds per package
  • LOST TRIBE x CROSSWALKER
    The potent Colorado Lost Tribe brings an average of 32% with up to 37% seen in our screening program. The Crosswalker improves all structural traits to manage canopy and lower leaf density for production.  Exceptional plant for solventless extracts.
    6 seeds per package
  • MOB™ aka Mother of Berries. An East coast Legend brought to T.H.Seeds™ Amsterdam by our Boston friend. MOB™ is an incredibly fast, short and fat plant. It looks different than what you are used to, some purple and crazy pink color and it's full of terpenes. This 100% Indica gives a very unique flavor, like nothing you've ever smelled or tasted before. The first time we smoked it in Amsterdam we had a great time but kept forgetting our keys so we named it “stupid bud”- be warned- MOB™ is strong medicine! The first entry ever by MOB™ was at the prestigious Expo Grow Cannabis Cup in Irún 2015 - it won 2nd place in Indica category.
    6 seeds per package
  • MAGIC JORDAN x GUPTA KUSH
    Magic Jordan crossed with Gupta Kush creates the ultimate Night Nurse; this deep-healing, Hawaiian-vibed Indica strain that produces lime green buds packed with crystal. Often accompanied by scents of lemon, lime, and earthy Kush flavors with a hint of mint. Known for its high levels of residual CBG and a thick, sedating, body high.
    6 seeds per package
  • MAGIC JORDAN x GUPTA KUSH
    Magic Jordan crossed with Gupta Kush creates the ultimate Night Nurse; this deep-healing, Hawaiian-vibed Indica strain that produces lime green buds packed with crystal. Often accompanied by scents of lemon, lime, and earthy Kush flavors with a hint of mint. Known for its high levels of residual CBG and a thick, sedating, body high.
    6 seeds per package
  • TROP COOKIES x SKYWALKER OG
    Consistent Tropicanna Cookies profile with many of the phenotypes expressing large flowers and aggressive vigor from the Crosswalker donor. Large, low density flowers combined with the trichome morphology of the trop cookies creates an exceptional plant for solventless extracts. High variability in the line allows a spectrum of options to choose from with valuable traits segregated and balanced. 25-27% THC and amazing terps!
    6 seeds per package
  • LAVENDER x GUPTA KUSH
    Krishna Kush comes from a cross of Lavender with Gupta Kush. This strain has a very fragrant lavender aroma with notes of sweet, earthy musk. The high is long-lasting, sedating, dreamy and uplifting, with an overarching sense of happiness and well-being. Popular amongst medical patients and others seeking relief. The plants are fast-finishing and the deep Indica back-cross creates massive, crystal-covered Kush buds with tight nodes and dominant purple traits.
    6 seeds per package
  • LAVENDER x GUPTA KUSH
    Krishna Kush comes from a cross of Lavender with Gupta Kush. This strain has a very fragrant lavender aroma with notes of sweet, earthy musk. The high is long-lasting, sedating, dreamy and uplifting, with an overarching sense of happiness and well-being. Popular amongst medical patients and others seeking relief. The plants are fast-finishing and the deep Indica back-cross creates massive, crystal-covered Kush buds with tight nodes and dominant purple traits.
    6 seeds per package
  • LAVENDER x GUPTA KUSH
    Krishna Kush comes from a cross of Lavender with Gupta Kush. This strain has a very fragrant lavender aroma with notes of sweet, earthy musk. The high is long-lasting, sedating, dreamy and uplifting, with an overarching sense of happiness and well-being. Popular amongst medical patients and others seeking relief. The plants are fast-finishing and the deep Indica back-cross creates massive, crystal-covered Kush buds with tight nodes and dominant purple traits.
    6 seeds per package
  • BLUEBERRY x HAZE

    Blue Dream is a sativa-dominant hybrid strain made by crossing Blueberry with Haze. This strain produces a balanced high, along with effects such as cerebral stimulation and full-body relaxation. Blue Dream is reported to smell and taste like sweet berries. Medical marijuana patients often use Blue Dream to treat symptoms of depression, chronic pain, and nausea. Blue Dream originated in California and has since achieved legendary status among West Coast strains and has quickly become one of the most-searched-for strains in the Leafly database.


    6 seeds per package
  • SUNSET SHERBERT x THIN MINT GSC

    Gelato 33 is a hybrid strain made by crossing Sunset Sherbet and Thin Mint GSC. Since its birth, a number of phenotypes have been released, all with their own unique attributes. One of them is Gelato #33, a balanced hybrid with compact buds, staying true to its Cookie genetics. Like other Gelato phenotypes, Gelato #33 is covered with fiery orange hairs while its buds can be dark green to purple. With sweet citrus and fruity flavors, Gelato #33 offers an uplifting and energetic high that is perfect for any post-work activity after a long day.


    6 seeds per package
  • PURPLE KUSH STARSHIP x GUPTA KUSH
    The Ghost Ship strain is a strong, purple Indica that draws largely from its Purple Kush Starship roots – an outstanding strain with a strong body high and muscle-relaxing effects. The nose is balanced between the sinister Kush and the friendly Starship. With a classic Indica buzz, Ghost Ship has a mellow and easy feel without lethargy or couch-lock. Plants are generally Kush-structured with very beautiful, mostly purple buds on strong stems. As with most Indicas, it can be a bit slow to root, so be careful not to overwater when young. Slower feeding (similar to OG Kush or Starship) works best for this strain.
    6 seeds per package
  • PURPLE KUSH STARSHIP x GUPTA KUSH
    The Ghost Ship strain is a strong, purple Indica that draws largely from its Purple Kush Starship roots – an outstanding strain with a strong body high and muscle-relaxing effects. The nose is balanced between the sinister Kush and the friendly Starship. With a classic Indica buzz, Ghost Ship has a mellow and easy feel without lethargy or couch-lock. Plants are generally Kush-structured with very beautiful, mostly purple buds on strong stems. As with most Indicas, it can be a bit slow to root, so be careful not to overwater when young. Slower feeding (similar to OG Kush or Starship) works best for this strain.
    6 seeds per package
  • SUNSET SHERBERT x GIRL SCOUT COOKIES

    Lemon Cherry Gelato is a hybrid strain made from a genetic cross between Sunset Sherbet and Girl Scout Cookies. CSI's Lemon Cherry Gelato is 25% THC, making this strain an ideal choice for experienced cannabis consumers.   Lemon Cherry Gelato effects include tingly,  relaxed, and euphoric.  Lemon Cherry Gelato features an aroma of lime, berries, and citrus with flavors of lemon, and sweet fruit. The dominant terpene of this strain is caryophyllene.


    6 seeds per package
  • WHITE TRIANGLE OG x GUPUTA KUSH
    Though the genetics of the White Triangle OG remain a bit of a mystery, we crossed it with our Gupta Kush to create the Iron Triangle OG Kush. Potent and zesty, this cross is a great combination of Kush, diesel, and spicy citrus overtones. It’s brighter and less vegetative smelling than the Ghost OG, with a splash of San Fernando Valley OG zippiness. The high is a deep, stunning body buzz coupled with a transcendent head high. With much heavier yields than its parent strains, Iron Triangle OG has a Kushy growth style with lime green buds and a high volume of crystals. For the best yields, consider extra castings in the soil or a nitrogen boost mid-flower, with lots of topping.
    6 seeds per package
  • IRON TRIANGLE OG KUSH: REG

    $69.00
    WHITE TRIANGLE OG x GUPUTA KUSH
    Though the genetics of the White Triangle OG remain a bit of a mystery, we crossed it with our Gupta Kush to create the Iron Triangle OG Kush. Potent and zesty, this cross is a great combination of Kush, diesel, and spicy citrus overtones. It’s brighter and less vegetative smelling than the Ghost OG, with a splash of San Fernando Valley OG zippiness. The high is a deep, stunning body buzz coupled with a transcendent head high. With much heavier yields than its parent strains, Iron Triangle OG has a Kushy growth style with lime green buds and a high volume of crystals. For the best yields, consider extra castings in the soil or a nitrogen boost mid-flower, with lots of topping.
    6 seeds per package
Go to Top