California

July 19, 20, 22 SMART Technologies, Alternative Water for Landscape Irrigation, Predicting & Estimating Landscape Water Use. Palmdale. To learn more, e-mail info@spotwater.com.

July 21-22 Landscape Irrigation Auditor Class. Palmdale. For more information, e-mail info@spotwater.com.

July 21-24 California Landscape Contractors Association Summer Family Extravaganza. Fairmont Hotel, San Jose. For details, visit www.clca.org.

Colorado

July 20 Summer Seminar: Perennials. Phelan Gardens, Colorado Springs. To learn more, visit www.coloradonga.org.

July 27 Summer Seminar: Trees. Greenside Nursery & Landscaping, Colorado Springs. For more information, visit www.coloradonga.org.

August 3 Summer Seminar: Shrubs. Harding Nursery, Colorado Springs. To learn more, visit www.coloradonga.org.

August 10 Summer Seminar: Landscape Design. CSU Extension Office, Colorado Springs. For more information, visit www.coloradonga.org.

Hawaii

July 23-24, 31 Certified Landscape Technician Program Irrigation School. Urban Garden Center, Pearl City, and University of Hawaii Experiment Station Farm, Waimanalo. For more information, visit http://lichawaii.com.

Idaho

July 19 PNW-ISA Workshop: Roots & Root Washing. Eagle. For more information, visit www.inlagrow.org.

July 20 PNW-ISA Workshops: Pruning for Commercial Landscapes; Tree Selection & Maintenance for the Treasure Valley. Eagle. To learn more, visit www.inlagrow.org.

Montana

August 14 Landscape Architecture Day. Logan Pass, Glacier National Park. To learn more, visit www.imasla.org.

Washington

July 29 Summer Pruning of Trees & Shrubs. Washington Park Arboretum, Seattle. For details, call 206-685-8033 or visit www.wsnla.org.