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Training & Certification for Landscape Professionals

Sustainable landscaping is a growing market. Green Gardening training puts you in the lead. Check this page regularly for upcoming professional trainings, or view Past Workshop Presentations. For training materials in other languages see Translations.

Upcoming training opportunities

Register now for the Feb. 2 webinar of the 2023 City of Seattle IPM and Recertification Webinar Series

Registered attendees can earn up to 1.5 ISA credits and 3 WSDA pesticide license recertification credits for this webinar.  

Agenda: Feb. 2, 8 am – 11:30 am

  • The Importance of Being Evergreen,  Clay Antieau
    Do you grasp the deep importance of being Evergreen in the Evergreen State?  A critical plant adaptation in the Pacific Northwest, Evergreen-ness is an amazing ecological story that explains why certain plant species are invasive and why certain plant communities are invasible.  Evergreen-ness is a primary tool in ecologically based invasive plant management used to establish invasion-resistant ecosystems while reducing pesticide use and irrigation.
  • An Inside look at the City of Seattle’s IPM Program and Pesticide Tier Tables,  Larry Garcia
    Learn the history of IPM in Seattle, the Pesticide Tiering system, pesticide use reduction strategy and how to request an exception to use a Tier 1 product.
  • Seattle Urban Carnivore Project:  From Conflict to Coexistence,  Katie Remine and Dr. Robert Long
    Woodland Park Zoo and Seattle University launched the Seattle Urban Carnivore Project to explore how mammalian carnivores, such as coyotes, foxes, raccoons, bobcats, and even cougars and bears live and interact with people across urban and suburban areas in the Seattle region. The continued survival of urban carnivore populations, as well as a sense of security for the public, requires an increased understanding of and coexistence with these species. We will share insights from research on our urban carnivores followed by a discussion on ways we can support human-wildlife coexistence in our communities.

This webinar is open to all. Feel free to forward or share this information.


Cost: Free (pre-registration required)

Credits: Up to 3 WSDA credits and up to 3 ISA credits per webinar

How do I obtain WSDA or ISA credit?
Event organizers will be collecting license information and verifying attendance during the event, so be sure to have your license number handy during the webinar.

What if I’m sharing a screen with multiple people?
If you need to share a screen, please email Bridget Kelsh at ASAP. Bridget will need to pre-approve you to share screens and make sure you have the appropriate sign-in sheet.

What if I’m still confused or have more questions?
Contact Bridget Kelsh at

Coming soon! The next two webinars are scheduled for Feb. 14 and March 2, both 8 am – 11:30 am.

Training and certification resources:

Landscape professionals can learn more and be recognized through:

Community college horticulture, landscape, and urban agriculture professional training:

Professional organizations offering training:


Public Utilities

Andrew Lee, General Manager and CEO
Address: 700 5th Avenue, Suite 4900, Seattle, WA, 98104
Mailing Address: PO Box 34018, Seattle, WA, 98124-5177
Phone: (206) 684-3000

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Seattle Public Utilities (SPU) is comprised of three major direct-service providing utilities: the Water Utility, the Drainage and Wastewater Utility, and the Solid Waste Utility.