In 2018, UK law changed the Misuse of Drugs Regulations 2001 to allow...

https://telegra.ph/Can-I-Grow-Cannabis-in-the-UK-for-Medical-Reasons-08-27

In 2018, UK law changed the Misuse of Drugs Regulations 2001 to allow specialist doctors to prescribe certain cannabis-based medicines, like Sativex and Epidyolex. Yet, recreational cannabis remains a Class B drug