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.

Speed + Auto Feminised Seeds – Sweet Seeds

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Speed + Auto Feminised Seeds – Sweet Seeds

Regular price £22.80 GBP

Regular price Sale price £22.80 GBP
Unit price per

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Sweet Mandarine Zkittlez F1 Fast Version Feminised Seeds – Sweet Seeds

Sweet Mandarine Zkittlez F1 Fast Version Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

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

Sweet Mandarine Zkittlez XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Strawberry Cola Sherbet F1 Fast Version Feminised Seeds – Sweet Seeds

Strawberry Cola Sherbet F1 Fast Version Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
S.A.D. F1 FAST Version Feminised Seeds – Sweet Seeds

S.A.D. F1 FAST Version Feminised Seeds – Sweet Seeds

Regular price £22.80 GBP

Regular price Sale price £22.80 GBP
Unit price per
Red Poison Auto Feminised Seeds – Sweet Seeds

Red Poison Auto Feminised Seeds – Sweet Seeds

Regular price £26.60 GBP

Regular price Sale price £26.60 GBP
Unit price per
Runtz XL Auto Feminised Seeds – Sweet Seeds

Runtz XL Auto Feminised Seeds – Sweet Seeds

Regular price £30.40 GBP

Regular price Sale price £30.40 GBP
Unit price per
Red Mimosa XL Auto Feminised Seeds – Sweet Seeds

Red Mimosa XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Red Mandarine F1 FAST Feminised Seeds – Sweet Seeds

Red Mandarine F1 FAST Feminised Seeds – Sweet Seeds

Regular price £26.60 GBP

Regular price Sale price £26.60 GBP
Unit price per
Red Hot Cookies Feminised Seeds – Sweet Seeds

Red Hot Cookies Feminised Seeds – Sweet Seeds

Regular price £26.60 GBP

Regular price Sale price £26.60 GBP
Unit price per
Papaya Zoap F1 FAST Feminised Seeds – Sweet Seeds

Papaya Zoap F1 FAST Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Papaya Zoap Auto Feminised Seeds – Sweet Seeds

Papaya Zoap Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 GBP
Unit price per
Orange Apricot Glue XL Auto Feminised Seeds – Sweet Seeds

Orange Apricot Glue XL Auto Feminised Seeds – Sweet Seeds

Regular price £28.50 GBP

Regular price Sale price £28.50 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

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Killer Kush F1 FAST Version Feminised Seeds – Sweet Seeds

Regular price £22.80 GBP

Regular price Sale price £22.80 GBP
Unit price per

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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