Darshan Robson.
Darshan runs a market garden in Forest Row following Biodynamic practices and will be talking to us about Cosmic Ecology - which I'm guessing is a subject that may be new to many of us.
He is passionate about looking after the natural world, and soil in particular, and he combines this practice with very successful growing results (as Ian and I have personally witnessed).
I am sure he will also be happy to answer any questions you might have at the end of the evening.