How to Inspect Your Greenhouse Polyethylene: A Complete Seasonal Guide
Inspecting your greenhouse polyethylene at every change of season is one of the most important maintenance steps a grower can take. A small crack left unrepaired can become a large tear after the next wind event, costing you far more in emergency replacement than a 10-minute inspection would have. If your region has recently experienced […]
BC Farm Business Accelerator: 4 Proven Ways to Launch Your Greenhouse Operation
The agricultural sector is the backbone of any economy, ensuring food security and contributing significantly to the nation’s GDP. In British Columbia, a province known for its fertile valleys, mild climate, and growing demand for locally produced food, the opportunity for new farmers has never been greater — yet the barriers to entry remain significant. […]
Oregon RFSI Grant: Funding for Greenhouse & Food Infrastructure
In an ambitious move to bolster local and regional food systems, the Oregon Department of Agriculture has unveiled the Resilient Food Systems Infrastructure Grant (RFSI Grant). This USDA-funded program injects vitality and resilience into Oregon’s food supply chain — with a particular focus on empowering small and emerging farms, food businesses, and historically disadvantaged communities. […]
USDA’s New Controlled Environment Crop Insurance: What Producers Need to Know
Agriculture is undergoing a profound transformation. At the forefront of this evolution is Controlled Environment Agriculture (CEA) — a growing practice that is revolutionizing how farmers across the United States produce crops. Recognizing this paradigm shift, the U.S. Department of Agriculture (USDA) has launched a landmark new crop insurance program specifically designed for CEA producers. […]
Gothic Arch-Style Greenhouse: How Harnois Invented a Canadian First in 1973
In 1973, a single project changed the course of commercial greenhouse growing in Canada — and beyond. Rolland Harnois, founder of Harnois Industries Inc., designed and built the first gothic arch-style, gutter-connected greenhouse complex ever constructed in the country. At 45,000 ft², it was not only the largest of its kind in Canada at the […]
Cost of Growing in a Winter Greenhouse: What You Need to Know
Winter greenhouse growing allows you to supply fresh produce to your customers all year round. However, in northern climates, cold-season production comes with additional energy expenses that require careful planning. Understanding your winter greenhouse growing costs before starting is essential to determining whether year-round production is the right move for your operation. This guide breaks […]
The Best Tips for Choosing Your Commercial Greenhouse Ventilation
Proper commercial greenhouse ventilation is one of the most important — and often overlooked — aspects of a successful growing operation. A well-designed system ensures healthy crop development, improves yield, and protects your structure from long-term damage caused by excessive heat and humidity. In this guide, we’ll walk you through the key factors to consider […]
Harnois Greenhouse After-Sales Service: Long-Term Support You Can Rely On
At Harnois Greenhouses, our commitment does not end when your greenhouse is delivered and installed. We believe that a successful project depends on continuous, reliable, and personalized support long after installation. That is why our greenhouse after-sales service is designed to give you complete peace of mind at every stage of your operation. With over […]
Renewable Energy for Greenhouses: Geothermal & Biomass Guide
Running a commercial greenhouse means managing heat and light around the clock. According to a report from Agri-rĂ©seau published in 2008, energy represents on average 37% of total operating costs in greenhouse production — a figure that remains accurate today. With heating bills continuing to rise across North America, switching to sustainable energy sources has […]
Thinking of a greenhouse complex expansion? Think of Harnois
Harnois commercial greenhouses are designed with commercial greenhouse expansion in mind. They can be extended after the initial installation without disrupting production—an important advantage for growers. Discover how phasing your greenhouse construction supports business growth while keeping your project on budget.  Harnois commercial greenhouses are built for long-term growth. Our structures are designed to […]