CBD flowers are illegal to buy and sell in the UK!

Until the law is updated to take into account the difference between CBD flowers and high THC cannabis, there is no legal way to buy CBD flowers online or in-store in the UK

https://www.cbdflowers.co.uk/are-cbd-flowers-legal-uk

The only legal way to possess cannabis is by obtaining a prescription.
Possible for cannabis to be prescribed for medical purposes only.

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