high thc seeds

High THC seeds from this collection are chock-full of tetrahydrocannabinol (aka THC), the primary psychoactive cannabinoid of the plant we all love. Thanks to the utilization of the latest breeding techniques and a vast range of high-quality genetics, the average THC level in our premium strains is higher than ever! Take a look at this collection – it’s perfectly suited to those looking to add a powerhouse to their garden. They all also have well-rounded terpene profiles and moderate to high yields.

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Sort by: Cheap first High THC first Name (A - Z) Popular first New Top Our Choice Mix Pack
Northern Lights 10 of 10 Feminized Seeds (Seedkeepers) Seedkeepers
1-yr Guarantee New Extra Seeds
Northern Lights 10 of 10 (Seedkeepers)
4.6 (14)
30 - 35% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.42 £23.33 37.67 Save 14.34 £35.25 65.93 Save 30.68 £73.01 131.85 Save 58.84
Keepers OG Autoflower Feminized Seeds (Seedkeepers) Seedkeepers
1-yr Guarantee New Extra Seeds
Keepers OG Autoflower (Seedkeepers)
4.9 (10)
28 - 33% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£8.29 £26.53 33.18 Save 6.65 £41.13 58.06 Save 16.93 £70.85 116.12 Save 45.27
Apple Betty feminized seeds
1-yr Guarantee Top
Apple Betty (Herbies Seeds)
4.9 (63)
28 - 33% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £23.33 25.92 Save 2.59 £36.72 43.2 Save 6.48 £56.16 86.4 Save 30.24
Lemon Cherry Gelato Seeds Barney's Farm Seeds
New
Lemon Cherry Gelato (Barney's Farm)
0 (0)
33% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.96 £33.7 38.88 Save 5.18 £48.39 64.8 Save 16.41
Zillions Seeds Barney's Farm Seeds
New
Zillions (Barney's Farm)
0 (0)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.96 £33.7 38.88 Save 5.18 £48.39 64.8 Save 16.41 £83.82 129.6 Save 45.78
Insane OG Seeds Barney's Farm Seeds
New
Insane OG (Barney's Farm)
0 (0)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.96 £33.7 38.88 Save 5.18 £48.39 64.8 Save 16.41
Blackberry Moonrocks Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top
Blackberry Moonrocks (AlphaFem Seeds)
4.8 (80)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.41 £28.28 37.22 Save 8.94 £76.01 124.07 Save 48.06
Super Boof Seeds Barney's Farm Seeds
New
Super Boof (Barney's Farm)
0 (0)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.1 £31.97 36.29 Save 4.32 £45.79 60.48 Save 14.69 £78.63 120.96 Save 42.33
Chemdog Fast Version (EGS)
1-yr Guarantee 1+1=3
Chemdog Fast Version (EGS)
4.9 (30)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £21.6 25.92 Save 4.32 £37.07 43.2 Save 6.13 £64.8 86.4 Save 21.6
Bruce Banner Fast Version Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Bruce Banner Fast Version (EGS)
5 (28)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £21.6 25.92 Save 4.32 £37.07 43.2 Save 6.13 £64.8 86.4 Save 21.6
Oreoz feminized seeds 00 Seeds
New
Oreoz (00 Seeds)
0 (0)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£14.26 £21.17 23.76 Save 2.59
Heavy Kickers Mix Feminized Seeds (Herbies Seeds)
1-yr Guarantee Mix Pack
Heavy Kickers Mix (Herbies Seeds)
5 (20)
29 - 33% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£99.98
LFG Seeds Barney's Farm Seeds
New
LFG (Barney's Farm)
0 (0)
30 - 32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.96 £33.7 38.88 Save 5.18
Super Banana Mango (Super Lemon Haze x GMO) Seeds Green House Seeds
New
Super Banana Mango (Super Lemon Haze x GMO) (Green House Seeds)
0 (0)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£53.57
Bruce Banner # Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top
Bruce Banner # (AlphaFem Seeds)
4.9 (65)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£10.87 £25.58 32.6 Save 7.02 £70.08 108.65 Save 38.57
Glue Sherbert Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top Extra Seeds
Glue Sherbert (AlphaFem Seeds)
4.9 (43)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.82 £23.56 29.45 Save 5.89 £65.45 98.15 Save 32.7
Dozy Doz Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top Extra Seeds
Dozy Doz (AlphaFem Seeds)
4.9 (50)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.82 £23.56 29.45 Save 5.89 £65.45 98.15 Save 32.7
Totally Alpha OG Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top Extra Seeds
Totally Alpha OG (AlphaFem Seeds)
5 (48)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.82 £23.56 29.45 Save 5.89 £65.45 98.15 Save 32.7
Alpha 21 Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top Extra Seeds
Alpha 21 (AlphaFem Seeds)
4.9 (64)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£11.94 £27.49 35.82 Save 8.33 £74.3 119.41 Save 45.11
Grandmommy Purple Feminized Seeds (Herbies Seeds)
1-yr Guarantee Top
Grandmommy Purple (Herbies Seeds)
4.9 (110)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £23.33 25.92 Save 2.59 £36.72 43.2 Save 6.48 £56.16 86.4 Save 30.24
Runtz Punch Feminized Seeds (Herbies Seeds)
1-yr Guarantee Top
Runtz Punch (Herbies Seeds)
4.9 (59)
29% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£10.37 £27.99 31.1 Save 3.11 £44.07 51.84 Save 7.77 £67.39 103.68 Save 36.29
Bay Haze Seeds Delicious Seeds
New
Bay Haze (Delicious Seeds)
0 (0)
29% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£10.38 £28.54 31.14 Save 2.6 £44.98 51.89 Save 6.91
Ghost Train Haze Feminized Seeds (Seedkeepers) Seedkeepers
1-yr Guarantee New Extra Seeds
Ghost Train Haze (Seedkeepers)
4.9 (10)
28 - 30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.42 £23.33 37.67 Save 14.34 £35.25 65.93 Save 30.68 £73.01 131.85 Save 58.84
Sour Jealousy Auto Feminized Seeds (Fast Buds)
New
Sour Jealousy Auto (Fast Buds)
5 (2)
29% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£11.23 £32.18 33.7 Save 1.52 £49.72 56.16 Save 6.44 £91.66 112.32 Save 20.66
Papaya Cookies Auto Feminized Seeds (Fast Buds)
New
Papaya Cookies Auto (Fast Buds)
5 (2)
29% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£11.23 £32.18 33.7 Save 1.52 £49.72 56.16 Save 6.44 £91.66 112.32 Save 20.66
Apple Strudel Auto Feminized Seeds (Fast Buds)
New
Apple Strudel Auto (Fast Buds)
5 (3)
29% THC
  • Feminized
  • Autoflowering
New
Pack (number of seeds)
£11.26 £32.35 33.78 Save 1.43 £49.97 56.29 Save 6.32 £92.12 112.59 Save 20.47
Gorilla Cookies Fast Flowering (Fast Buds)
Gorilla Cookies Fast Flowering (Fast Buds)
5 (3)
29% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£11.23 £49.72 56.16 Save 6.44
Bubba Kush Feminized Seeds Barney's Farm Seeds
Top
Bubba Kush (Barney's Farm)
5 (9)
29% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.5 £25.06 28.51 Save 3.45 £35.42 47.52 Save 12.1 £62.21 95.04 Save 32.83
Godzilla Original Glue GG#4 Feminized Seeds (Herbies Seeds)
1-yr Guarantee Great yields
Godzilla Original Glue GG#4 (Herbies Seeds)
4.9 (35)
29% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £23.33 25.92 Save 2.59 £36.72 43.2 Save 6.48 £56.16 86.4 Save 30.24
Lemon Cherry Cookies Auto Feminized Seeds (Fast Buds)
New
Lemon Cherry Cookies Auto (Fast Buds)
5 (5)
28.5% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£11.23 £32.18 33.7 Save 1.52 £49.72 56.16 Save 6.44 £91.66 112.32 Save 20.66
Runtz Triploid feminized seeds Advanced Seeds
New
Runtz Triploid (Advanced Seeds)
0 (0)
26 - 30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.53 £30.31 38.11 Save 7.8 £51.96 66.69 Save 14.73
Girl Scout Cookies Fast Version Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Girl Scout Cookies Fast Version (EGS)
4.8 (28)
28% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £21.6 25.92 Save 4.32 £37.07 43.2 Save 6.13 £64.8 86.4 Save 21.6
Grand Daddy Purple Fast Version Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Grand Daddy Purple Fast Version (EGS)
4.9 (29)
28% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.64 £21.6 25.92 Save 4.32 £37.07 43.2 Save 6.13 £64.8 86.4 Save 21.6
Runtz Autoflower Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Runtz Autoflower (EGS)
4.9 (33)
28% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£8.64 £21.6 25.92 Save 4.32 £37.07 43.2 Save 6.13 £64.8 86.4 Save 21.6
Apple Betty Auto Feminized Seeds (Herbies Seeds)
1-yr Guarantee Top
Apple Betty Auto (Herbies Seeds)
4.8 (47)
27 - 29% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£8.1 £23.93 24.29 Save 0.36 £38.45 40.48 Save 2.03 £57.54 80.96 Save 23.42
Godzilla Cookies Auto Feminized Seeds (Herbies Seeds)
1-yr Guarantee Top Extra Seeds
Godzilla Cookies Auto (Herbies Seeds)
4.9 (52)
27% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£8.1 £23.93 32.38 Save 8.45 £38.45 56.67 Save 18.22 £57.54 113.34 Save 55.8
Top review
avatar
...
12 August 2024
5
Amazing :)
Top review
avatar
--
22 March 2025
5
Here's some data for you, I see people share it a lot in reviews here 📊✅ Grow Time: 4 weeks Flowering Time: 50 days Yield: 2.3 oz/plant (organic soil, no CO2) Training: LST only Resistance: No pests, slight sensitivity to PM (controlled by airflow) Bag Appeal: 9/10 (dense, frosty, minimal leaves) Smoke Report: Clear euphoria, no burnout. Verdict: If you need a reliable, fast-finishing strain with commercial-grade bud, stop looking. It's right here.
Top review
avatar
-
21 March 2025
5
GoodGerm 100%

More THC Than You Ever Had With Herbies’ High THC Seeds

high thc seeds

This seed collection includes some of the most groundbreaking strains in the industry. It showcases regular and feminized photoperiod seeds in addition to autoflowering variants, giving the choice to you, the grower! Forget about your tolerance – there’ll be nothing left of it once you take a toke and fly higher than you ever have before! This collection is the perfect place for anyone craving an experience of a lifetime – the most intense couch-locks, the most psychedelic sensations, and the most euphoric and cerebral highs – the keyword is THE MOST. 

Whether you have an indoor or outdoor garden, we’re certain you’ll find something that’s just right! If you’re picking a strain from our collection of the highest THC cannabis seeds for sale, this is what you’ll be getting:

  • High THC content – the average THC content in this list exceeds 24%.
  • Excellent genetic lineage – these strains were produced as a result of crossing prized genetics to give novel, extra-potent twists on classic strains.
  • Mouth-watering terpene profiles – whether you like fruity varieties or those with an earthy flavor, you’ll love the taste of our high THC cannabis strains.

Disclaimer: Before purchasing and growing cannabis seeds, ensure that cannabis cultivation is legal in your region.

Only The Highest THC Cannabis Seeds For Sale – Get Yours Now!

high thc cannabis seeds

Whether you’re a recreational or medical user, our list of high THC cannabis seeds contains some of the strongest weed strains out there, including Do-Si-Dos OG by Original Sensible Seeds (28% THC), Apple Betty from Herbies Seeds (28-33% THC), and many more – just see for yourself! These strains have been selected specifically to minimize the amount of time you spend searching for your next grow and maximize the efficiency of your garden, so get growing and get high!

Disclaimer: High-THC cannabis strains should be consumed with caution, especially by novice users. Always start with a low dose and be mindful of your tolerance levels.

Last updated: 5 June 2026
Why Choose Herbies to Buy Cannabis Seeds in United Kingdom

  • Trusted by customers for over 20 years
  • Wide range of premium cannabis strains
  • Fast & discreet shipping to United Kingdom
  • Secure checkout with multiple payment options
  • Free bonus seeds with every order
  • Freshly stored seeds with guaranteed germination
  • Thousands of positive customer reviews worldwide
  • Buy with Confidence
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Written by
Jessica Turner
Cannabis writer and social activist

Jessica is a cannabis writer and activist focused on education, responsible use, and stigma reduction. She creates beginner-friendly content for Herbies Seeds and The Cannabook on Medium.

Reviewed by
Ethan Cole
Cannabis cultivation expert and writer
FAQ
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Yes, Herbies offers fast and discreet shipping to United Kingdom. You can check delivery availability with our shipping calculator. If your country is not listed, shipping is not available at this time.

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Yes, all orders are packaged with 100% discretion. Herbies is never mentioned on the package, and labels only include essential delivery details.

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Orders are usually assembled and dispatched within 24 hours of payment on business days. Weekend orders are processed on the next working day. In rare cases, dispatch may take slightly longer.

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