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Meet The Team

The Owners

Gary Wickham

Owner/President/Landscaping Manager

President & Owner Greenleaf Landscaping Gary Wickham is the President and Owner of Greenleaf Landscaping, bringing over 25 years of leadership and hands-on expertise to the company. As a Certified Landscape Technician (CLT), Gary oversees all aspects of operations—from coordinating field crew schedules and managing equipment to training staff and ensuring adherence to company procedures. His strategic oversight and commitment to client satisfaction have been instrumental in driving the growth and long-term success of Greenleaf. Originally from Cusick, Washington, Gary combines deep industry knowledge with a passion for excellence in landscape renovation and construction. Outside of work, he enjoys fishing, camping, 4-wheeling, snowmobiling, and working on cars. A fan of Chinese food and the color blue, Gary also values time spent in nature and with family.

Gary & Melanie Wickham

Owner's

Gary Wickham is the President and owner of Greenleaf Landscaping, along with his wife, Melaine. At Greenleaf Landscaping, you will always be able to quickly reach one of our experienced office staff members all year round! If you’re asking for a free estimate, have a billing question, or would like to know when your services are scheduled, our staff is ready to help you.

Melanie Wickham

Owner/Vice President/Office Manager

Owner & Office Manager Greenleaf Landscaping Melanie Wickham is a dynamic and dedicated professional who exemplifies versatility and excellence in her role as Owner and Office manager at Greenleaf Landscaping. With over three years of service, she has consistently demonstrated a strong commitment to operational efficiency, managing day-to-day office functions with precision and care. Her attention to detail and unwavering focus continue to uphold a legacy built on integrity, passion, and core values. Melanie is a Level 1 Certified NDT Technician and brings a wealth of experience from the manufacturing and customer service industries. Originally from Kingman, Arizona, she is known for her hands-on approach and deep understanding of organizational needs. Outside of work, Melanie enjoys camping, fishing, and boating. A devoted Seattle Seahawks fan, she also treasures time spent with her grandbabies, reflecting the same warmth and dedication she brings to her professional life.

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The Office Staff

Melanie Wickham

Owner/Vice President/Office Manager

Owner/Vice President/Office Manager of Greenleaf Landscaping, Melanie Wickham is a dynamic and dedicated professional who exemplifies versatility and excellence in her role as Owner and Office manager at Greenleaf Landscaping. With over three years of service, she has consistently demonstrated a strong commitment to operational efficiency, managing day-to-day office functions with precision and care. Her attention to detail and unwavering focus continue to uphold a legacy built on integrity, passion, and core values. Melanie is a Level 1 Certified NDT Technician and brings a wealth of experience from the manufacturing and customer service industries. Originally from Kingman, Arizona, she is known for her hands-on approach and deep understanding of organizational needs. Outside of work, Melanie enjoys camping, fishing, and boating. A devoted Seattle Seahawks fan, she also treasures time spent with her grandbabies, reflecting the same warmth and dedication she brings to her professional life.

Arel Dantzler

Assistant Manager/Billing Coordinator

Arel Dantzler serves as the Assistant Manager and Billing Coordinator at Greenleaf Landscaping, where she plays a vital role in supporting office operations and managing accounts receivable. With over five years at Greenleaf and a strong background in the healthcare insurance industry, Arel brings exceptional organizational skills and a client-focused approach to her work. She communicates with clients via phone and email, tracks and reports internal paperwork, and ensures staff and clients are informed of service schedules and updates. Originally from Lynnwood, Washington, Arel is known for her attention to detail and warm, collaborative spirit. Outside of the office, she enjoys winemaking, gardening, cooking, and crafting with her daughter, Myah. She also loves camping, tending to her citrus trees and tropical plants, spending time with family and friends, and taking road trips to Florence, Oregon.

Barbara Van't Net

Billing Coord/Admin Asst/Scheduler

Barbara Van’t Net plays a vital role at Greenleaf Landscaping, where she manages billing, invoicing, scheduling, and staff training with precision and care. Her organizational skills and dedication help keep operations running smoothly, while her positive attitude contributes to the supportive and collaborative team environment. Barbara finds great fulfillment in being part of a company that enhances the beauty of the community. A proud graduate of University High School and lifelong resident of Spokane, WA, Barbara enjoys camping, traveling, and spending quality time with her family. Her greatest joy comes from spoiling her two granddaughters, Paisley and Steel.

Crystal Layne

Human Resources Director

As HR Director at Greenleaf Landscaping, Crystal Layne brings over 20 years of experience in human resources and employment lifecycle management. With a strong foundation in medical and technology education, Crystal has built a career centered around people, process, and purpose. For the past 5+ years, Crystal has been an integral part of the Greenleaf team, overseeing all facets of HR—from recruitment and onboarding to employee relations and compliance. She especially values the opportunity to work closely with staff in a smaller company setting, where relationships and culture truly matter. Originally from Spokane, WA, Crystal is known for her approachable leadership style and her commitment to supporting both individual growth and company success. She thrives on solving challenges and creating a positive workplace environment. Outside of work, Crystal enjoys music, mountain climbing, kayaking, and traveling—activities that reflect her adventurous spirit and love for the outdoors.

Mickinzy Lawson

Administrative Assistant & Scheduler

As the Landscape & Irrigation Scheduler at Greenleaf, I have enjoyed being part of a company that truly treats its employees like family. The supportive and loving environment fosters a strong sense of teamwork, making it a pleasure to come to work every day. I have been with Greenleaf for four years, bringing my education of welding. My hometown is Elk, WA, & I enjoy reading the scriptures and singing in my free time.

Brandi Roldan

Receptionist/Admin Assistant/Scheduler

As the Receptionist and Administrative Assistant at Greenleaf Landscaping, I handle a variety of responsibilities that include greeting clients, providing estimates for landscaping jobs, and scheduling for our mowing and horticulture departments. I truly enjoy working here because of the amazing crew I get to collaborate with every day. I earned my GED and have been a part of the Greenleaf team for four months. Originally from St. George, Utah, I have a passion for reading, camping, and helping others in my community.

Annie Wickham

Marketing Manager/Scheduler

With a strong background in office administration and medical billing & coding, I bring organization, creativity, and precision to my role at Greenleaf Landscaping. I manage all aspects of marketing from website design and digital advertising to scheduling Arbor services, ensuring our brand reflects the quality and care we deliver to every client. What I love most about working at Greenleaf Landscaping is being part of a passionate, collaborative team dedicated to turning landscaping visions into reality. Though I’ve been here just five months, the culture and mission resonate deeply with me. Based in Spokane, WA, I’m happiest outdoors, camping, Jeeping, and spending time with my husband of 21 years, our four amazing children, their spouses, and our ten beautiful grandchildren.

The Department managers

Matthew Olson

Operations Manager

As Operations Manager at Greenleaf Landscaping, Matt Olson plays a key role in keeping the company running smoothly and safely. With over 13 years of experience on the team, Matt brings a strong blend of leadership, technical skill, and a passion for education to his work. Matt oversees spray product applications, provides training and guidance to coworkers, and helps educate customers on best practices for landscape care. He thrives on the balance of teamwork and independence, and enjoys solving challenges that arise in the field and behind the scenes. Originally from Missoula, Montana, Matt holds an Associate’s Degree in Business, which supports his strategic approach to operations and team coordination. Outside of work, Matt is an avid outdoorsman who enjoys hunting, fishing, and cheering on the Zags. His love for nature and sports reflects the same energy and dedication he brings to his role every day.

Michael Richardson

Spray Manager

With over 20 years of dedicated service at Greenleaf Landscaping, Mike Richardson is a cornerstone of the team, known for his deep industry knowledge and hands-on leadership. As Spray Manager, Mike oversees crew operations, chemical ordering, and scheduling, while also working actively in the field to ensure every application is done safely and effectively. Originally from La Habra, California, Mike holds an Associate’s Degree in Accounting, which adds a layer of precision and organization to his management style. His extensive experience and product knowledge make him a trusted resource for both his team and clients navigating the complexities of spray management. Mike enjoys the problem-solving aspect of his role and the opportunity to learn something new every day. His calm, reliable presence helps keep operations running smoothly and efficiently. Outside of work, Mike is a passionate fan of Rams football, and enjoys watching sports and movies, camping, and spending quality time with his family. Whether he's outdoors or relaxing at home, Mike brings the same dedication and enthusiasm to everything he does.

Jason McGinnis

Mowing Manager

Jason McGinnis serves as the Mowing Manager at Greenleaf Landscaping, where he oversees crew coordination, ensures top-tier quality control on job sites, and resolves any issues that arise during mowing services. With over 14 years of experience at Greenleaf Landscaping and a career rooted in the landscaping industry since graduating high school in 1994, Jason brings deep expertise and dedication to his role. Born and raised in Spokane, Washington, he’s passionate about the outdoors, enjoying activities like hunting and fishing. When he's not outside, you’ll likely find him watching football and cheering on his favorite team, the Raiders.

Rob Layne

Mowing Manager

As Mowing Manager at Greenleaf Landscaping, Rob Layne brings strong leadership, hands-on training, and a passion for building high-performing crews. With 2 years at Greenleaf Landscaping and a background in law enforcement and corrections, Rob has successfully transitioned his team-building and leadership skills into the landscaping industry creating a positive, efficient work environment that gets results. Rob thrives on the opportunity to mentor team members, solve challenges in the field, and ensure every property is maintained to the highest standards. His structured approach and commitment to quality make him a key part of Greenleaf’s success. Originally from Spokane, WA, Rob enjoys a balanced life outside of work. His hobbies include judo, martial arts, and spending time with his family, reflecting his dedication to discipline, wellness, and connection.

David Hill

Horticulture Manager | Spray Tech

With over 17 years of experience at Greenleaf Landscaping, David Hill leads the way in horticulture operations, combining deep field knowledge with a passion for continuous learning. As Horticulture Manager and Spray Technician, David oversees day-to-day horticulture services, conducts quarterly quality assurance, educates customers, and applies targeted spray treatments to keep landscapes healthy and thriving. A proud Spokane, WA native, David is known for his thoughtful approach to problem-solving and his commitment to delivering exceptional service. He thrives on the challenges each day brings and enjoys the opportunity to grow his expertise while helping clients better understand their landscapes. Outside of work, David’s hobbies reflect his love for the outdoors and creativity. He enjoys hiking, spending time in nature, and all things music.

Adam Dewitt

Certified Arborist/Arbor Manager

As Greenleaf Landscaping’s Certified Arborist, Adam Dewitt brings expert knowledge and over a decade of hands-on experience in tree care and preservation. He specializes in diagnosing tree health, overseeing pruning and removal operations, and guiding clients on long-term tree management. Adam is passionate about maintaining Spokane’s natural beauty and ensuring the safety and sustainability of every landscape. His commitment to excellence and education makes him a trusted resource for both customers and team members. When he's not in the field, Adam enjoys exploring the outdoors and staying current on the latest arboriculture practices.

Rich Sgarra

Certified Arborist/Arbor Manager

As a Certified Arborist at Greenleaf Landscaping, Rich Sgarra brings extensive experience and a deep commitment to tree health and safety. With a strong background in arboriculture, Rich specializes in tree assessments, pruning, removals, and long-term care strategies tailored to Spokane’s unique landscape. His hands-on approach and attention to detail make him a trusted expert among clients and colleagues alike. Rich is passionate about preserving the natural beauty of the region and ensuring every tree is treated with care and precision. Outside of work, he enjoys spending time outdoors and continuing to expand his knowledge of tree science.

Pat Dubay

Irrigation Manager

As Greenleaf Landscaping’s Irrigation Manager, Patrick Dubay brings over 12 years of hands-on experience and leadership to the team. With a strong background in parks, recreation, and wildlife, supported by an Associate of Applied Science degree, Patrick blends technical expertise with a deep appreciation for the natural world. A Spokane native, Patrick plays a vital role in scheduling, field operations, and training new employees, ensuring every irrigation system is installed and maintained with precision and care. His problem-solving mindset and calm leadership make him a trusted resource across the company. Outside of work, Patrick is rarely indoors. He enjoys boating, fishing, hunting, camping, hiking, and tending to his yard activities that reflect his lifelong connection to nature and the outdoors.

Gary Wickham

Owner | Landscaping Manager

Gary Wickham leads Greenleaf Landscaping as both President and Owner and Landscaping manager, bringing over 25 years of hands-on experience and strategic leadership to the company. As a Certified Landscape Technician (CLT), Gary plays a dual role—overseeing day-to-day field operations and guiding the long-term vision of the business. He manages crew scheduling, equipment logistics, staff training, and ensures all projects meet the company’s high standards for quality and professionalism. Originally from Cusick, Washington, Gary is deeply passionate about landscape renovation and construction. His commitment to client satisfaction and operational excellence has been a driving force behind Greenleaf’s growth and reputation in the industry. Outside of work, Gary enjoys fishing, camping, 4-wheeling, snowmobiling, and working on cars. He’s a fan of Chinese food, the color blue, and spending time in nature with his family.

John Goldsberry

Shop Mechanic | Equipment Specialist

With over 13 years at Greenleaf Landscaping, John Goldsberry plays a key role in keeping the fleet and equipment running smoothly. As a shop mechanic, John handles general repairs and maintenance, ensuring every vehicle and machine is safe, reliable, and ready for the job. Originally from Dodge City, Kansas, John is a self-taught mechanic whose passion for fixing things began at just 8 years old, starting with lawn mowers and never looking back. “I just kept tearing things apart to learn more,” he says a curiosity that’s grown into a career built on hands-on experience and problem-solving. John enjoys the independent work style his role offers, along with the satisfaction of diagnosing and solving mechanical challenges. His consistent Monday–Friday schedule allows him to stay focused and efficient while supporting the entire Greenleaf team. Outside of work, John’s hobbies include motorcycles and wood turning, where he continues to apply his mechanical mindset and craftsmanship in creative ways.

Louis Prigan

Shop Manager | Certified Mechanic

With over 24 years of dedicated service at Greenleaf Landscaping, Louis Parigan is the trusted expert behind the scenes, ensuring every piece of equipment and vehicle operates safely and efficiently. As Shop Manager, Louis oversees all shop operations, combining mechanical expertise with a sharp eye for detail and safety. Originally from Pescadero, California, Louis brings a strong work ethic shaped by his years in the military and a lifelong passion for problem-solving. He holds a high school diploma and is a certified mechanic, known for his ability to tackle challenges with precision and creativity. Louis enjoys the variety of his work, from diagnosing mechanical issues to coordinating shop logistics. His favorite part of the job? “No two days are the same—and there’s always a new puzzle to solve.” When he’s not in the shop, you’ll find Louis immersed in his favorite hobby: cars, cars, cars. Whether it’s restoring classics or exploring new automotive tech, his enthusiasm for all things on wheels never slows down.

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Greenleaf Landscaping has been an industry leader in providing professional and exceptional landscape services in the Inland Northwest area since 1980.

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