Online talks and all our lectures are FREE for Friends to access. Members of the public are welcome to join us at the Dorothy Fox Centre for just £5; please email lectures@fobssheffield.co.uk for details.

Don Witton is a retired schoolteacher with a passion for hardy herbaceous perennials in general and Euphorbias in particular.He has a Plant Heritage National Collection of hardy Euphorbias for over 25 years which has been featured in several garden magazines and 3 times on national TV. In addition to these achievements he has written 3 books on Euphorbias and lectures extensively to groups all over the country.