Alexander-Sinclair, who has chalked up a number of successful hosting and speaking roles at industry events, will share his thoughts on the importance of gardening, the role of architecture in gardens, what makes a great garden and how the industry can help get gardening in front of the public.
The conference, this year titled Bigger, Better, Stronger takes place on 15 October and will look at topics including: the future of gardening, people and careers, moving with the times, adapting for the new consumer and surviving in an online world.
Delegates have until 31 August to benefit from the early bird rate. HTA Garden Futures is sponsored by Hozelock, The Scotts Miracle-Gro Company and William Sinclair and takes place at the Royal Institute of British Architects (RIBA) in London.HTA chief executive Carol Paris said the event should not be missed.
"Alongside the highly relevant topics and inspirational speakers, Garden Futures provides a fantastic opportunity to network with peers and to equip you with expert advice and insights to help take your business forward."
The event is tweeting using #gardenfutures on Twitter.