The Workers’ Educational Association (WEA) are running a number of Permaculture courses across the UK. The WEA is a charity supported by a skills funding agency contract and as such their courses are open and free to UK and EU residents in receipt of specified means tested benefits.
More information; such as eligibility for free courses, can be accessed from the WEA website http://www.wea.org.uk/courses/financialhelp
Here’s the results of a Course Search on ‘Permaculture’ from the WEA website:
https://www.facebook.com/wwoofuk