Date announced for 2018 ISA Hamilton Expo: Tues, March 27, 2018 By Graham Nasby on September 28, 2017 in Announcement ISA Hamilton is pleased to announce the date for our 2018 ISA Hamilton Expo trade show! Tuesday, March 2017, 2018 at the RBG Centre at the Royal Botanical Gardens at 650 Plains Road, Burlington, Ontario. Vendor information will be posted shortly.