Arizona

April 2 Arizona Landscape Contractors’ Association Field Day. The Pera Club, Tempe. For details, visit www.azlca.com.

April 6 Annual Spring Turfgrass Seminar. University of Arizona Co- operative Extension, Phoenix. To learn more, visit http://cals.arizona. edu/turf/events.htm.

April 9, 13, 16 Arizona Certified Landscape Professional Workshop: Sod Laying & Turf ID. University of Arizona Cooperative Extension, Phoenix; Maricopa Ag Center, Maricopa; Pima Community College, Tucson. For more information, visit www.azlca.com.

May 7, 11, 14 Arizona Certified Landscape Professional Workshop: Tree Pruning. Ewing Irrigation, Phoenix; Maricopa Ag Center, Maricopa; Pima Community College, Tucson. For details, visit www.azlca.com.

California

March 24-25 Landscape Irrigation Auditor Class. San Francisco. For details, visit www.irrigation.org.

March 30-April 2 CELA 2011 Conference: Urban Nature. Los Angeles. For more information, visit http://arch-pubs.usc.edu/CELA2011.

Colorado

May 5 Graff’s Turf Farms Field Days. Graff’s Turf Farms, Fort Morgan. To learn more, call 800-280-8873 or visit www.graffsturffarms.com.

Idaho

March 25-27 15th Annual Boise Flower & Garden Show. Boise Centre on the Grove, Boise. For more information, visit www.gardenshowboise.com.

May 14-15 Idaho Green Expo. Boise Centre on the Green, Boise. For details, visit www.idahogreenexpo.org.

Montana

March 25-26 The Idaho-Montana American Society of Landscape Architects 2011 Rendezvous. Crowne Plaza, Billings. To learn more, visit www.imasla.org.

Oregon

April 20 2011 Oregon Landscape Contractors Association Manage- ment Seminar. Crowne Plaza Portland Lake Oswego, Lake Oswego. For details, visit www.oregonlandscape.org.

Washington

March 24 The Future of & Business Opportunities in Sustainable Landscaping. Clover Park Technical College, Lakewood. To learn more, visit www.walp.org.

April 19 Rain Garden Workshop. Everett Community College, Everett. For details, call 206-292-9875 or e-mail sg@stewardshippartners.org.

National

March 17-20 35th Annual PLANET Student Career Days. Joliet Junior College, Joliet, Ill. To learn more, visit www.landcarenetwork.org.

March 22-26 CONEXPO-CON/AGG 2011. Las Vegas Convention Center, Las Vegas, Nev. For details, visit www.conexpoconagg.com.

March 23-April 27 Municipal Specialist Certification Preparation Course. Brea Community & Conference Center, Brea, Calif. For more information, visit www.tedstamen.com.

April 10-13 2011 APWA North American Snow Conference. Spokane, Wash. For more information, visit http://sites.apwa.net/snow/2011/Home/home.aspx.

April 14 Interior Plantscape Symposium. Longwood Gardens, Kennett Square, Pa. To learn more, visit www.landcarenetwork.org.

May 15-19 Lightfair International. Pennsylvania Convention Center, Philadelphia, Pa. For details, visit www.lightfair.com.

June 14-17 International Flori- culture Expo. Miami Beach Con- vention Center, Miami Beach, Fla. For more information, visit www.floriexpo.com.