5-7
Irrigation Association Legislative Conference, Washington, D.C. To register, visit www.irrigation.org/legislativeconference by April 8, 2009. For more information contact IA’s Federal Affairs Director John Farner at john@irrigation.org or (703) 536-7080.
8
National Public Gardens Day, sponsored by the American Public Gardens Association and Rain Bird. For more information visit www.publicgardens.org.
8-11
Toronto Green Roof Boot Camp, Toronto, Ontario, Canada. For more information, visit www.greenroofs.org.
