C.P. Yeatman & Sons is a fifth-generation, family-owned mushroom operation based in Chester County, Pennsylvania, best known today for its Mother Earth Organic Mushrooms brand. Its relationship with the American Mushroom Institute (AMI) is well-documented through active personnel participation, but no specific “join date” for the company’s AMI membership is available in public records.
📋 Business Overview
C.P. Yeatman & Sons operates as a vertically integrated, organic-focused grower with affiliated packing and sales divisions.
- History & Structure: The family’s mushroom farming began in 1921 when Arthur P. Yeatman built the first mushroom houses alongside a dairy operation in West Grove, PA . The partnership C.P. Yeatman & Sons was formed in 1958 when Clarence’s sons Jim and Bob entered the business . The company is now in its fifth generation, with Jerry Yeatman and Tim Hihn as owners/shareholders .
- Organic Focus & Brands: The company became the nation’s first commercial mushroom producer to earn organic certification . Its organic line is marketed under Mother Earth Organic Mushrooms, while a conventional line is sold under the New Moon brand . Packing, processing, and sales are handled by Mother Earth, LLC, located in Landenberg, PA .
- Scale & Facilities: Growing operations span locations in West Grove and Oxford, PA, with 53 growing houses throughout southern Chester County as of 2020 . The company also operates a country store at its West Grove location for retail mushroom sales .
📞 Contact Information
- Website: organicmushrooms.com (Mother Earth brand) .
- Retail/Country Store: Located at the West Grove facility, open 8am–5pm Monday–Friday; advance notice requested for large fresh mushroom orders .
- Note: A direct main phone number for the corporate office is not explicitly listed in the available public search results. The website is the most reliable starting point for inquiries.
🤝 Relationship with the American Mushroom Institute (AMI)
C.P. Yeatman & Sons’ AMI relationship is evidenced through personnel involvement in AMI committees and industry advocacy, as well as direct collaboration with AMI leadership.
- OSHA Alliance Participation: Jerry Yeatman of C.P. Yeatman & Son is listed as an Implementation Team member in the AMI/OSHA Alliance annual reports for both 2008 and 2009 . Viviana Cordero of C.P. Yeatman & Son is also listed in the 2009 report .
- Active Membership: Meghan Klotzbach, Vice President at C.P. Yeatman & Sons/Mother Earth, is described as an active member of the American Mushroom Institute and has spoken about the importance of farmer involvement in commodity organizations .
- Industry Collaboration: In 2023, Pennsylvania First Lady Lori Shapiro toured Mother Earth Organic Mushrooms alongside representatives from AMI and AMI President Rachel Roberts, highlighting the farm’s role in the state’s agricultural industry .
- AMI Grower Member Listing: C.P. Yeatman & Sons appears in an AMI Grower Members listing published in Mushroom News in 2017 .
Regarding the “Join Date”: The search results confirm C.P. Yeatman personnel were participating in AMI-related OSHA Alliance activities by 2008, and the company is listed as an AMI Grower Member by 2017. However, a specific calendar year when the company formally became an AMI member is not documented in the available sources.
