Don Marshall, a spirited educator, landscape designer and horticulture professional, has established one of the most outstanding horticulture programs in Washington state. As the founder of the Environmental Horticulture program at Lake Washington Institute of Technology over 35 years ago, he continues to improve the program to meet the needs of the diverse industry and community. More than 700 graduates from his program have found fulfilling careers in wholesale and retail nurseries, design and maintenance firms, arboriculture, sales and education.
Don is a Certified Professional Horticulturist (CPH) and Certified Arborist. In addition to teaching full time, Don owns and operates Plant Designs, a landscape design, installation and maintenance firm specializing in organic fine gardening. He teaches seminars throughout the Puget Sound Region in venues including Molbak’s Garden + Home, Northwest Flower and Garden Show and Swanson's Nursery, He also teaches Plant Amnesty seminars and Master Gardeners continuing education courses at locations across Western Washington.
In 2011, Don received the Harold Young Award for Outstanding Service, the Washington State Nursery & Landscape Association’s (WSNLA) highest award. He is the only educator to receive the WSNLA Educator of the Year award three times – in 1992, 1995 and 2011. In 2004, Marshall was honored with the Outstanding Involvement award and a Lifetime Membership to WSNLA in 1998. LWTech honored Don with the Technical College Instructor of Excellence Award in 1991 and 1997 and the Puget Sound Energy Excellent Instructor Award in 2006. He was also the recipient of the Washington Association of Landscape Professionals Grand Award in 1996 for Residential Interiorscape Design and Installation.
Don co-authored Home Landscaping, Northwest Region published by Creative Homeowner, now in its 3rd printing. He lives in the Pacific Northwest and is passionate about eating his landscape.
Assistant Professor, Department Chair
Chris Sexton-Smith stays current with cutting edge industry trends and practices, and passes his knowledge and education directly to his students. Through his organic landscaping business, Walden Garden Services LLC, he employs these practices in the field. He is a strong believer in a holistic and organic approach, applying his degree in Ecology from University of California at Santa Cruz to the garden ecosystem. Chris has been a horticulture instructor for over a decade, and he enjoys communicating using practical, hands-on instruction.
In addition to being a Certified Professional Horticulturist (CPH), Chris sits on the Washington State Nursery and Landscaping Association Board of Directors, the ecoPro Certification Technical Committee, and Lynnwood High School Program Advisory Committee.
Mon-Fri, 7:30 a.m. to 4:30 p.m.
Mon-Fri, 6 a.m. to 10 p.m.
Sat, 6 a.m. to 6 p.m.