About Gingrich Horticulture

Gingrich Horticulture Service is the Plant Health Care and Pest Control Company of the East Bay.

Founded in 1999 as a family owned and operated company, our goal is to work with home owners to keep their landscape plants healthy and beautiful. As we have added members to our team, we have maintained a small company values, basing our success on the satisfaction of our customers. Our employees receive continuing education in arboriculture and horticulture and we like to share our knowledge with our customers, working with them or their gardeners to maintain their healthy landscape.

Gingrich Horticulture Service utilizes a variety of integrated pest management (IPM) techniques to create sustainable garden environments for residential and commercial clients throughout Central Contra Costa County. In addition to controlling insects, gophers, moles, voles, yellow jackets and ground squirrels, the company provides lawn, tree, shrub, and ground cover care that includes weed control and lawn core aerations.

President John Gingrich says Gingrich Horticulture Service’s customer-oriented business approach has been an important part of its ongoing success. Our goal is to give every client their money’s worth, and if they don’t feel that way, we want to know about it. We’re very knowledgeable about the technical aspects of the industry, and we utilize our expertise to develop thriving, beautiful landscapes.

Gingrich Horticulture Service is known for its focus on plant health care, which includes fertilizing each plant based on its specific needs and making sure its surrounding environment is optimal for long-term success. We work hard to make sure every plant is as happy and healthy as possible, affirms Mr. Gingrich. ͞Whether that means eliminating pests or using environmentally-friendly materials, we’re always looking for the best ways to optimize the health of our customers’ plants.


  • John is great with horticulture, as far as diagnosing tree problems. John Gingrich is great, absolutely great.

    David S.

  • They're very reputable and honest. They come on time and they have a great service.

    Judith R.


Our team of experts will work side-by-side with you to offer the best solutions for your project.

  • IMG_4187
    President and Founder

    John Gingrich

    John Gingrich founded Gingrich Horticulture Service with his wife Dianne in 1999.  At first it was just the two of them working together to serve the East Bay by keeping plants and landscapes healthy.  John has always run this company as a small, family owned company that puts the customers first.  He values what his clients think and will always do what he can to make every situation right.

    John has a long history in the field of horticulture and arboriculture, graduation from Cal Poly, San Luis Obispo with a degree in Horticulture years ago.  He has maintained active in the field and participates in continuing education yearly to remain as knowledgeable and helpful as possible. John has been described as a walking encyclopedia, especially when diagnosing and treating tree and plants in landscapes.  With his passion for the field and commitment to himself and his clients he has a wealth of knowledge to offer our customers to improve landscapes.

    President and Cofounder

    Dianne Gingrich

    Dianne Gingrich moved to the United States from Australia after marrying John Gingrich close to 30 years ago.  She quit her job to help John launch Gingrich Horticulture Service in 1999, and has been committed to this company ever since.  Dianne managers much of what goes on in the company, maintaining the office while working with the technicians to improve our service daily.  She stressed the importance of organization and communication within the company to keep things moving quickly and smoothly, and because of her hard work Gingrich Horticulture Service proudly guarantees a three-business-day turnaround of all work that comes in.

    Dianne looks forward to connecting with the customers of Gingrich Horticulture and getting to know people personally.  She is moving toward being in the field more often, in order to connect with and meet the clients we serve.  She has a heart for the people Gingrich Horticultures serves and is committed to providing the best possible service.

  • William Walker, Field Supervisor
    Field Supervisor

    William Walker

    William, who often goes by BJ, was John’s first employee when he founded this company.  William has been with Gingrich Horticulture for close to 15 years, working closely with John and remaining steady through the growth and change in the company.  He has chosen to pursue his own certification in arboriculture, and now has years of experience diagnosing and treating trees in our customers yards.  William not only pursues his certification on his own, but he is also committed to furthering his knowledge through continued education every year.

    William has a strong commitment to Gingrich Horticulture and its values, including a high priority on customer satisfaction.  He leads the team of technician in their service while maintain his own route of customers. His wealth of knowledge continues to grow as he approaches 20 years with Gingrich Horticulture Service.