Great Lakes Growers: Greenhouse Lettuce Demand Holds After Cyclospora Scare

Food-safety scares keep pushing shoppers indoors. In an October 12, 2026 FreshPlaza interview, Great Lakes Growers owner John Bonner said greenhouse lettuce demand has held after this past summer’s Cyclospora outbreak in field-grown product.

What the grower reported

• Sixth greenhouse expansion: first harvest about two weeks before the article; product was already sold out the day the expansion opened
• Retail mix includes living green and butter lettuce, Zesty Arugula, Gourmet Baby Spinach and spring mix; foodservice gets lettuce, leafy greens and fresh-cut herbs
• Website and personal inboxes saw a spike of safety questions; buyers relayed customers wanting to switch to greenhouse-grown
• Other demand drivers: higher fuel costs lifting field-grown prices, and closures elsewhere tightening greenhouse supply

Next build

Bonner called the latest expansion one of the company’s most technologically advanced for environmental controls and said another expansion is already on the radar — roughly eight to ten months after a still-undetermined start date, bolting new glass onto existing gas, heating, water and pack-house infrastructure.

Rocks take

CEA adoption stories are often capital raises; this one is a Midwestern operator describing sticky post-scare demand. Watch whether the next bolt-on actually starts before summer 2027.