Have you ever heard of a mechanical garden? Well Antrim is getting Northern Ireland’s first, and this week David Maxwell chats to designer Diarmuid Gavin about his plans for the space. It’s being created to mark the Queen’s platinum jubilee and the return of Garden Show Ireland. Also on the programme, Klaus Laitenberger on the tempting taste of home-grown tomatoes and Cherry Townsend on the importance of planning ahead with pots of bulbs. David will also be putting questions to the experts including why one listener’s orange crocuses keep vanishing. Get in touch by email – gardenerscorner@bbc.co.uk