It's the Gardeners' Corner phone-in this Saturday morning with David Maxwell. Joining him in the studio are gardening experts Barbara Pilcher and Brendan Little. If you would like to call them or text them with your gardening query , the number is 03030 805555 or to text its 81771 and standard network charges apply. David will also be heading to Helen's Bay to visit John McClean and the private allotment he has made his own.