I do check my local gardening clubs speakers list sometimes to see if there'd be anything I'd be interested in (although I'm not a member).
I saw earlier in the year that Charles Dowding was doing a talk on gardening myths and misconceptions (he has a book of the same title), and as I'd long been a fan of his and owned one of his books I decided to attend. He is best know for his work on promoting the "No Dig" method of gardening.
The village hall was packed out - I think they had over 140 in attendance and he didn't disappoint. He's certainly a well practised speaker and delivered an interesting and witty talk about trying to avoid some of the misguided wisdom that we sometimes inadvertently follow.
I was quite pleased as many of the things he mentioned I already do, although maybe not to the level he does (the no dig is an example of this as for the area I garden it's hard to find enough compost and organic matter to cover all the beds with 3 inches).
I was also pleased to hear that he puts nettle roots into his compost and doesn't suffer from nettles popping up everywhere, something my mother always tells me off about if she's round when I do it! He also talked about the pointlessness of netting melons, ho you can compost blighted tomato leaves, and using fleece to protect crops, not hardening off as he plants out.
It was a really enjoyable talk and I recommend anyone that gets the chance to go and see one of his talks, he also has a great YouTube channel here as well with some really informative videos on there. I like any gardener that tries to break the norm and generally make our lives a little bit easier and he's certainly one of those!
Who have you seen as a really interesting garden speaker?