Strongest Cannabis Strains 2018

USA Cannabis Seeds

The Strongest Cannabis Strains For 2018

For some growers and smokers, cultivating the strongest cannabis possible is the underlying factor when selecting which strains to grow. With the addition of many new strains during the first half of the year, we have produced this post to help you select from five of the strongest cannabis strains for 2018 available from I Love Growing Marijuana, one of the world’s leading suppliers of high quality cannabis and marijuana seeds.

THC is the primary cannabinoid associated with feeling ‘high’ when using marijuana or cannabis, and although it often induces feelings of tranquility and euphoria, extremely high levels can, in some people, cause panic, paranoia and anxiety. Cannabis strains with extremely high THC levels are not for casual or new smokers, and should be treated with the respect such potent weed deserves.

High THC levels do not produce the same effects across different strains. A Sativa dominant strain with elevated levels may produce a soaring, euphoric high, full of energy and creative thoughts. While a strong Indica based strain will probably have the opposite effect, causing ‘couch-lock’  and a sleepy, drowsy sensation. CBD levels also a play a role in the ‘high’, with higher levels created a more balanced, less anxious feeling, compared to strains with a high THC content and low CBD levels.

This selection of our strongest cannabis strains for 2018 are all feminized. Devoid of any male genes they are guaranteed to produce only pure female plants.

Banana Kush 27%

  • 40% Sativa 60% Indica
  • THC Level Very High 27%
  • CBD Low
  • Height Average
  • Yield High 14 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

The strongest cannabis strain in our collection, Banana Kush is a West Coast favorite that produces a euphoric and potent high. Fast and easy to grow, this Indica dominant hybrid responds well to a variety of growing methods and techniques with a short flowering phase. A top seller to many recreational users, with several medical applications including relieving stress, inducing sleep and reducing chronic pain. Banana Kush is also available in the fruity kush mixpack


Gorilla Glue 26%

  • 70% Sativa 30% Indica
  • THC Level Very High 26%
  • CBD Low
  • Height Tall
  • Yield High 18 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

Gorilla Glue has become extremely popular over the last twelve months with both growers and smokers. It’s heavy yields and fast-flowering times make to easy to grow, producing large, sticky buds with elevated THC levels and a powerful ‘couch-locking’ stone. Perfect as a relaxing night-time smoke, as well as many medical using including reducing aches and rheumatic pain. Gorilla Glue is also available in the heavy hitters mixpack


Skywalker OG 26%

  • 20% Sativa 80% Indica
  • THC Level Very High 26%
  • CBD Low
  • Height Average
  • Yield High 14 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

Skywalker OG is an extremely potent Indica dominant variety that can easily induce a ‘couch-locking’ sensation in casual and light smokers. It’s blend of Skywalker and OG Kush produce a powerful hybrid that’s great for pain relief and other medical applications. More difficult to grow, compared to other Indica dominant varieties, requiring a small amount of knowledge and previous growing experience to produce her best harvests. Skywalker OG is also available in the OG kush mixpack


Black Widow 25%

  • 50% Sativa 50% Indica
  • THC Level Very High 25%
  • CBD Low
  • Height Average
  • Yield High 14 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

Black Widow is a highly potent hybrid strain combining the best attributes from it’s Brazilian Sativa and South Indian Indica parentage. An easy to grow strain, perfectly adapted for indoor growing and a great choice for beginners with it’s reduced height and hefty harvests. The sweet berry flavor and fast, euphoric high make it a firm favorite with many recreational users, while medical marijuana patients are often prescribed the strain to help relieve stress, chronic pain and insomnia, while stimulating the appetite, mental alertness and creativity. Black Widow is also available in the widows mixpack


Bruce Banner 25%

  • 80% Sativa 20% Indica
  • THC Level Very High 25%
  • CBD Low
  • Height Average
  • Yield High 20 oz per square meter
  • Flowering period Average 65 days
  • Good for Indoor, Outdoor, Medical

Bruce Banner is a highly popular Sativa dominant strain combining Strawberry Diesel and OG Kush genetics. Expect huge yields of up to 20 ounces of the highest quality, pungent marijuana per square meter with a relatively short flowering cycle for a Sativa dominant variety. With a distinctive fruity diesel aroma and flavor, it’s an easy strain to identify and is becoming very popular with both medical and recreational users for its powerfully euphoric and pain relieving properties. Bruce Banner is also available in the pop culture mixpack


Chemdawg 25%

  • 45% Sativa 55% Indica
  • THC Level Very High 25%
  • CBD Low
  • Height Tall
  • Yield High 14 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

Chemdawg is a legendary ‘Hall of Fame’ cannabis strain that has spawned many hybrids including OG Kush and Sour Diesel. Slightly Indica dominant, it can produce tall, bushy plants with large buds and heavy yields. The chemical aroma is extremely pungent, but with a ‘moorish’ enjoyable flavor, once smoked, never forgotten. Highly prized and sought after, top quality Chemdawg buds often command the highest prices in many medical marijuana dispensaries. Chemdawg is also available in the DEA mixpack


L.A. Confidential 25%

  • 20% Sativa 80% Indica
  • THC Level Very High 25%
  • CBD Low
  • Height Tall
  • Yield High 17 oz per square meter
  • Flowering period Average 56 days
  • Good for Indoor, Outdoor, Medical

L.A. Confidential is a popular West Coast strain combining potent Afghan genes with a superior OG LA Alfie, resulting in a high quality Indica dominant hybrid that’s both fast to flower and easy to grow. A popular choice for growers both indoor and outside, requiring little knowledge or experience to produce a high quality crop of very potent marijuana buds. Recreational smokers should expect a powerful body-stone and rush of euphoria, while medical users often enjoy it’s strong pain relieving and calming effects. L.A. Confidential is also available in the USA pride mixpack


Buy The Strongest Cannabis Seeds Online

This is just a selection of our strongest cannabis seeds for 2018, all guaranteed to produce female-only plants, you can view the complete collection on our Feminized Cannabis Seeds page. Buying cannabis seeds online is safe, easy and secure, and although setting up your account for your first purchase requires a few extra minutes, this reduces fraud and increases customer security. All purchases are totally secure, processed and shipped by I Love Growing Marijuana, one of the world’s leading and most trusted internet suppliers of top quality marijuana and cannabis seeds.

Enjoy free shipping on all purchases, large or small, and with every item dispatched using the very best stealth postage and packaging methods, and 100% guaranteed to arrive, why leave the comfort of your own home to go find and purchase the seeds you require. Relax in the knowledge you are buying your cannabis seeds from an established, trusted supplier with thousands of happy customers and a reputation to uphold and enjoy the best, highest quality cannabis and marijuana seeds, all sold with guaranteed delivery and germination.

If you would like to learn more about I Love Growing Marijuana, view the complete seeds collection, or download their free Growing Marijuana Guide, click below and find out more.

Strongest Cannabis Strains 2018

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