We’re proud of who we are.
Our history is a track record of growth, focused on how we can add value to grower and agribusiness success.
Harvey Lyman and five partners formed Ag Chemicals Inc. to serve growers in the Sacramento River Delta area of California. Their third warehouse and office in Walnut Grove now house the Lyman Group Farm Parts Store and maintenance shop operations.1957
Harvey opens a second location in Clarksburg to serve more customers. The Walnut Grove operation was known as Harvey Lyman Chemicals, and the Clarksburg Operation was known as Harvey Lyman Agservice.1963
Harvey Lyman Chemicals and Harvey Lyman Agservice were incorporated as individual companies, but essentially worked as a team to serve an expanding grower base throughout the Delta.1974
Les Lyman, Harvey’s son, returned home to the company on a full-time basis in 1974. Already grounded in Harvey’s philosophy of grower service and the importance of valued employees, Les brought a sensible growth mentality to the business. He added innovation and a philosophy of wise investments for continuous service improvement and better pricing into ongoing business operations.1977
The company completed their first acquisition, acquiring the Pezzaglia Nursery operations in Rio Vista. The acquisition helped the company move further into the liquid and dry fertilizer business.1979
The acquisition of J. M. Buckley Ag Service in Courtland represented an investment in custom dry fertilizer blending and liquid fertilizer manufacturing. The operation was moved to the Harvey Lyman Ag Service location in Clarksburg shortly after acquisition.1980
The acquisition of Sacramento County Farm Supply in Wilton, CA broadened the company’s service area throughout the Galt and Elk Grove areas.1991
IAP was formed to guarantee the economic viability of the independent agricultural chemical distributor/dealer. Through IAP, The Lyman Company, Inc. was able to maximize purchasing positioning agricultural input market place.1995
Tremont Supply, Inc. acquired Agriform Farm Supply with a plant in Woodland, and retail sales offices in Woodland and Pleasant Grove. Agriform also had a sales office in Geyserville which previously operated under the name Agro-Tech.1999
The Tremont Group, Inc. acquired Growers Ag Service, Inc. with retail sales offices in Dixon, Tudor and Sonoma.2001
The Tremont Group, Inc. purchases Walnut Grove Transports in Dixon. Walnut Grove Transports is now part of TSI Trucking.2003
The AgriSource operation in Maxwell was formed by The Lyman Group and began operations throughout Northern CA.2008
Ag Unlimited was acquired, broadening the company’s Northern California coastal and inland service areas.2016
The Tremont Group Inc. is recognized as a national agribusiness leader in Homeland Securities Act compliance and sound environmental operations.2019
Our brands have created a rich history of serving customers to help them maximize their potential. Going forward we are Grow West. Grow West is the recognition that today we have to be more prepared than anyone to overcome the challenges agriculture in California can present. Which is only possible when we are all unified under one name, pushing for the same outcome, to maximize grower’s profitability while minimizing our impact on the environment.
We Grow More Than Crops
At Grow West® building a strong business is synonymous with building a strong community. That is why the people behind Grow West® have continued to lead industry associations, alliances and regional and community affairs organizations.
Likewise, Grow West continues to support more than 80 organizations in 15 counties. It is part of our culture and an essential piece of the fabric of California agriculture.
That means you’ll see us in your community, working to improve our ag industry and our connected economies. And you will see our history and heritage of working to help our neighbors and friends consistently succeed show through. These attributes and actions make Grow West a unique organization that combines the best of our past with our vision for the future.
Organizations we support
Grow West® at a Glance
- A local, independently-owned operation.
- Entrepreneurs run our locations and store fronts with the support of our management and administration.
- 300+ employees, 5,000+ customers.
- 18 retail, farm supply and wholesale manufacturing locations throughout California.
- Owners in Aligned Ag Distributors, along with Winfield United, the largest purchasing entity of agricultural chemicals in the United States.
- Less than 3% turnover and many multi-decade employees.
We promise to work with each other, and for our customers, with the following core values: