According to http://www.potatoday.org/ the 16th Hampshire Potato Day will be held on Sat 25 & Sun 26 January 2014 between 10am – 3pm.
Testbourne Community Centre, Micheldever Road, Whitchurch RG28 7JF
The 15th Potato Day was open for 2 days and they had 100 potato varieties available as individual tubers, 28 of which were also available as organically grown seed. Even though a difficult year in 2012. In 2013 all were priced at 17p per tuber (7 fro £1). And they had seeds and beans too. I saw them.
I have no connection with Hampshire Potato Day, just a satisfied customer.