Collection: High THC Seeds – Premium Strength Cannabis Seed Selection UK

Explore our High THC Seeds collection at Laughing Leaf Seeds, featuring cannabis seed varieties known for their higher-intensity profiles and bold characteristics. This selection is ideal for customers seeking stronger options within our wider catalogue.

For contrast, explore gentler options in our Low THC Seeds, browse balanced genetics in Hybrid Seeds, or see what’s freshly listed in New Arrivals. You can also finish your browse with our Hats & Caps.

00 Kush Auto Feminised Seeds – 00 Seeds

00 Kush Auto Feminised Seeds – 00 Seeds

Regular price £18.53 GBP

Regular price Sale price £18.53 GBP
Unit price per
00 Cheese Feminised Seeds – 00 Seeds

00 Cheese Feminised Seeds – 00 Seeds

Regular price £18.53 GBP

Regular price Sale price £18.53 GBP
Unit price per
Mimosa Bruce Banner XL Auto Feminised Seeds – Sweet Seeds

Mimosa Bruce Banner XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Killer Kush F1 FAST Version Feminised Seeds – Sweet Seeds

Killer Kush F1 FAST Version Feminised Seeds – Sweet Seeds

Regular price £22.80 GBP

Regular price Sale price £22.80 GBP
Unit price per
Jealousy Z XL Auto Feminised Seeds – Sweet Seeds

Jealousy Z XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Jet Fuel Mandarine XL Auto Feminised Seeds – Sweet Seeds

Jet Fuel Mandarine XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Black Muffin F1 FAST Feminised Seeds – Sweet Seeds

Black Muffin F1 FAST Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Lemonchello Haze Feminised Seeds – Seedsman

Lemonchello Haze Feminised Seeds – Seedsman

Regular price £11.35 GBP

Regular price Sale price £11.35 GBP
Unit price per
L.A. Peyote Kush Feminised Seeds – Seedsman

L.A. Peyote Kush Feminised Seeds – Seedsman

Regular price £11.35 GBP

Regular price Sale price £11.35 GBP
Unit price per
Royal Gorilla Auto Feminised Seeds – Royal Queen Seeds

Royal Gorilla Auto Feminised Seeds – Royal Queen Seeds

Regular price £9.50 GBP

Regular price Sale price £9.50 GBP
Unit price per
Green Gelato Feminised Seeds – Royal Queen Seeds

Green Gelato Feminised Seeds – Royal Queen Seeds

Regular price £30.88 GBP

Regular price Sale price £30.88 GBP
Unit price per
Fat Banana Feminised Seeds – Royal Queen Seeds

Fat Banana Feminised Seeds – Royal Queen Seeds

Regular price £23.75 GBP

Regular price Sale price £23.75 GBP
Unit price per
Cereal Milk Feminised Seeds – Royal Queen Seeds

Cereal Milk Feminised Seeds – Royal Queen Seeds

Regular price £30.88 GBP

Regular price Sale price £30.88 GBP
Unit price per
Biscotti Feminised Seeds – Royal Queen Seeds

Biscotti Feminised Seeds – Royal Queen Seeds

Regular price £28.98 GBP

Regular price Sale price £28.98 GBP
Unit price per
Melonade Runtz Feminised Seeds – Dutch Passion

Melonade Runtz Feminised Seeds – Dutch Passion

Regular price £23.70 GBP

Regular price Sale price £23.70 GBP
Unit price per
Shiskaberry Feminised Seeds – Barney's Farm

Shiskaberry Feminised Seeds – Barney's Farm

Regular price £11.40 GBP

Regular price Sale price £11.40 GBP
Unit price per