High THC Seeds


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 15% off New Top Our Choice Mix Pack
Fat Bastard Seeds (Blimburn Seeds) Blimburn Seeds
New
Fat Bastard (Blimburn Seeds)
0 (0)
30 - 38% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
Purple Overload Seeds (Original Sensible Seeds) original sensible seeds
New Extra Seeds
Purple Overload (Original Sensible Seeds)
0 (0)
35% THC
  • Feminized
  • Photoperiod
New Extra Seeds
Pack (number of seeds)
£23.97 £35.1 41.95 Save 6.85
Banana Fumes Seeds (Original Sensible Seeds) original sensible seeds
New Extra Seeds
Banana Fumes (Original Sensible Seeds)
0 (0)
35% THC
  • Feminized
  • Photoperiod
New Extra Seeds
Pack (number of seeds)
£23.97 £35.1 41.95 Save 6.85
Future #1 Seeds (Blimburn Seeds) Blimburn Seeds
New
Future #1 (Blimburn Seeds)
0 (0)
30 - 37% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
Northern Lights 10 of 10 Feminized Seeds (Seedkeepers) Seedkeepers
1-yr Guarantee New Extra Seeds
Northern Lights 10 of 10 (Seedkeepers)
4.6 (13)
30 - 35% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.33 £23.12 37.34 Save 14.22 £34.94 65.34 Save 30.4 £72.37 130.69 Save 58.32
Crescendo RBX1 Seeds (Ethos Genetics)
New
Crescendo RBX1 (Ethos Genetics)
0 (0)
30 - 37% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£51.38
Cap Junky Seeds (Blimburn Seeds) Blimburn Seeds
New
Cap Junky (Blimburn Seeds)
0 (0)
33 - 34% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
Sherbet Moonrocks Seeds (Original Sensible Seeds) original sensible seeds
New Extra Seeds
Sherbet Moonrocks (Original Sensible Seeds)
0 (0)
33% THC
  • Feminized
  • Photoperiod
New Extra Seeds
Pack (number of seeds)
£20.54 £30.82 35.95 Save 5.13
Permanent Marker Seeds (Blimburn Seeds) Blimburn Seeds
New
Permanent Marker (Blimburn Seeds)
0 (0)
32 - 34% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
Permanent Marker Auto Seeds (Blimburn Seeds) Blimburn Seeds
New
Permanent Marker Auto (Blimburn Seeds)
0 (0)
32 - 34% THC
  • Feminized
  • Autoflowering
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
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)
£8.22 £26.29 32.89 Save 6.6 £40.76 57.55 Save 16.79 £70.22 115.1 Save 44.88
Apple Betty feminized seeds
1-yr Guarantee Top
Apple Betty (Herbies Seeds)
4.9 (63)
28 - 33% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.56 £23.12 25.69 Save 2.57 £36.4 42.82 Save 6.42 £55.67 85.64 Save 29.97
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)
£12.85 £33.4 38.54 Save 5.14 £47.96 64.23 Save 16.27
Zillions Seeds Barney's Farm Seeds
New
Zillions (Barney's Farm)
5 (1)
32% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£12.85 £33.4 38.54 Save 5.14 £47.96 64.23 Save 16.27 £83.08 128.46 Save 45.38
Insane OG Seeds Barney's Farm Seeds
New
Insane OG (Barney's Farm)
0 (0)
32% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£12.86 £33.44 38.58 Save 5.14 £48.01 64.3 Save 16.29
Blackberry Moonrocks Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Blackberry Moonrocks (AlphaFem Seeds)
4.8 (79)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£12.3 £28.03 36.89 Save 8.86 £42.19 61.49 Save 19.3 £75.34 122.98 Save 47.64
Super Boof Seeds Barney's Farm Seeds
New
Super Boof (Barney's Farm)
5 (1)
32% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£11.99 £31.69 35.97 Save 4.28 £45.39 59.95 Save 14.56 £77.93 119.9 Save 41.97
Indigo Sapphire Seeds (Blimburn Seeds) Blimburn Seeds
New
Indigo Sapphire (Blimburn Seeds)
0 (0)
30 - 33% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£33.4 £51.38 66.8 Save 15.42
Chemdog Fast Version (EGS)
1-yr Guarantee 1+1=3
Chemdog Fast Version (EGS)
4.9 (29)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£8.56 £21.41 25.69 Save 4.28 £36.74 42.82 Save 6.08 £64.23 85.64 Save 21.41
Bruce Banner Fast Version Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Bruce Banner Fast Version (EGS)
5 (27)
31% THC
  • Feminized
  • Photoperiod
1-yr Guarantee 1+1=3
Pack (number of seeds)
£8.56 £21.41 25.69 Save 4.28 £36.74 42.82 Save 6.08 £64.23 85.64 Save 21.41
Blueberry Pancakes Seeds (Humboldt Seed Company)
New
Blueberry Pancakes (Humboldt Seed Company)
0 (0)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£45.39
Oreoz feminized seeds 00 Seeds
New
Oreoz (00 Seeds)
0 (0)
31% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£21.03
Heavy Kickers Mix Feminized Seeds (Herbies Seeds)
1-yr Guarantee Mix Pack
Heavy Kickers Mix (Herbies Seeds)
5 (20)
29 - 33% THC
  • Feminized
  • Photoperiod
1-yr Guarantee Mix Pack
Pack (number of seeds)
£99.08
Glue Sherbert Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Glue Sherbert (AlphaFem Seeds)
4.9 (43)
30% THC
  • Feminized
  • Photoperiod
1-yr Guarantee Top +2 seeds free
Pack (number of seeds)
£9.73 £23.35 29.19 Save 5.84 £35.68 48.64 Save 12.96 £64.87 97.29 Save 32.42
Totally Alpha OG Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Totally Alpha OG (AlphaFem Seeds)
5 (48)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.75 £23.39 29.24 Save 5.85 £35.74 48.73 Save 12.99 £64.99 97.46 Save 32.47
Alpha 21 Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Alpha 21 (AlphaFem Seeds)
4.9 (63)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£11.84 £27.25 35.51 Save 8.26 £41.12 59.18 Save 18.06 £73.64 118.35 Save 44.71
Mango Crack Seeds (Original Sensible Seeds) original sensible seeds
New Extra Seeds
Mango Crack (Original Sensible Seeds)
0 (0)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£25.73 £37.74 45.02 Save 7.28
Banana Cream OG Seeds (Original Sensible Seeds) original sensible seeds
New Extra Seeds
Banana Cream OG (Original Sensible Seeds)
0 (0)
30% THC
  • Feminized
  • Photoperiod
New Extra Seeds
Pack (number of seeds)
£25.68 £37.67 44.95 Save 7.28
Guava Runtz Auto Seeds (Fast Buds)
New
Guava Runtz Auto (Fast Buds)
0 (0)
30% THC
  • Feminized
  • Autoflowering
Pack (number of seeds)
£47.14
Thin Mint Frosting Seeds (Barney's Farm) Barney's Farm Seeds
New
Thin Mint Frosting (Barney's Farm)
0 (0)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£29.11 £44.52 48.52 Save 4
LFG Seeds Barney's Farm Seeds
New
LFG (Barney's Farm)
0 (0)
30 - 32% THC
  • Feminized
  • Photoperiod
New
Pack (number of seeds)
£12.87 £33.47 38.62 Save 5.15
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)
£14.99 £40.25 44.96 Save 4.71 £89.92 149.87 Save 59.95
Bruce Banner # Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Bruce Banner # (AlphaFem Seeds)
4.9 (65)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£10.77 £25.35 32.3 Save 6.95 £38.48 53.83 Save 15.35 £69.45 107.67 Save 38.22
Dozy Doz Feminized Seeds (AlphaFem Seeds)
1-yr Guarantee Top +2 seeds free
Dozy Doz (AlphaFem Seeds)
4.9 (50)
30% THC
  • Feminized
  • Photoperiod
Pack (number of seeds)
£9.75 £23.39 29.24 Save 5.85 £35.74 48.73 Save 12.99 £64.99 97.46 Save 32.47
Runtz Autoflower Feminized Seeds (EGS)
1-yr Guarantee 1+1=3
Runtz Autoflower (EGS)
4.9 (33)
28% THC
  • Feminized
  • Autoflowering
1-yr Guarantee 1+1=3
Pack (number of seeds)
£8.56 £21.41 25.69 Save 4.28 £36.74 42.82 Save 6.08 £64.23 85.64 Save 21.41
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)
£8.02 £23.72 24.07 Save 0.35 £38.11 40.12 Save 2.01 £86.41
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: 6 August 2026
Why Choose Herbies to Buy Cannabis Seeds in United Kingdom

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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
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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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