In this week’s episode, JM Fortier takes us on a greenhouse tour of his summer crops. Jean-Martin Fortier will walk you through the setup of his greenhouse, a Harnois Ovaltech FreeStanding Greenhouse, revealing the ways he provides a shield of protection for his veggies. Whether it’s heavy downpours or heatwaves, his greenhouse acts as a guardian, ensuring the optimal conditions for plant growth all year round.
What separates a struggling greenhouse from a thriving, profitable one? Knowledge. Harnois Greenhouses is proud to present Mastering Greenhouse Production, an exclusive masterclass developed in collaboration with world-renowned market gardener Jean-Martin Fortier and the Market Gardener Institute. Whether you’re launching your first greenhouse operation or scaling an existing one, this course gives you the proven strategies, tools, and confidence to grow smarter — not harder.
Why Take This Greenhouse Production Masterclass?
Greenhouse farming offers incredible potential — extended growing seasons, protection from extreme weather, and dramatically higher yields per square foot. But without the right systems in place, growers face costly mistakes, inconsistent harvests, and wasted resources.
This masterclass bridges the gap between theory and real-world practice. Jean-Martin Fortier, celebrated author and pioneer of high-yield, small-scale farming, brings decades of hands-on experience directly to you. Combined with the engineering expertise of Harnois Greenhouses — a North American leader in greenhouse design and manufacturing — this course delivers insights you simply won’t find anywhere else.
In the accompanying video, JM Fortier takes you on a live tour of his summer crops inside a Harnois Ovaltech FreeStanding Greenhouse, showcasing exactly how a well-designed structure protects crops from heavy downpours and heatwaves while maintaining optimal growing conditions year-round.
What You’ll Learn
This masterclass covers every stage of a successful greenhouse operation:
- Optimizing Your Greenhouse Layout Learn how to design your growing space for maximum efficiency, airflow, and yield. Discover why structure choice — like the Harnois Ovaltech, with its exclusive oval tube technology and up to 90–91% light transmission — directly impacts your daily operations and long-term profitability.
- Advanced Crop Management From transplanting schedules to pest control and succession planting, you’ll gain actionable techniques to keep your crops healthy and your production calendar full.
- Managing the Greenhouse Environment Understand how to control temperature, humidity, and ventilation across seasons. Learn to work with your structure’s built-in advantages rather than fighting the climate. Explore Harnois greenhouse equipment options, including heating, ventilation, and climate control systems.
- Sustainable Growing Practices Align your greenhouse production with environmental goals. Reduce inputs, minimize waste, and build a farming model that’s profitable and planet-conscious — a principle at the heart of every Harnois solution.
- Avoiding Costly Mistakes Learn from the mistakes of others. Jean-Martin Fortier shares the most common pitfalls new and intermediate growers face — and exactly how to sidestep them.
- Advanced Crop Management: Techniques to enhance plant health and production.
- Sustainable Practices: Learn how to align your greenhouse production with environmental goals.
- Avoiding Costly Mistakes: Tips from experts to save time, money, and resources.
Who Should Enroll?
This masterclass is designed for growers at every stage:
- Commercial growers looking to scale operations efficiently and reduce overhead
- Market gardeners who want to extend their growing season and boost revenue
- Farmers transitioning to greenhouse production and seeking a clear, proven roadmap
- Anyone passionate about sustainable, high-quality crop production
If you’re serious about making your greenhouse operation more productive, more resilient, and more profitable, this course is your next step.
Your Investment in Smarter Growing
This masterclass isn’t just a course — it’s a long-term investment in your future as a grower. The knowledge you gain will pay dividends every single season, from better crop planning to reduced losses and stronger market positioning.
Are you a Market Gardener Institute student? You’re entitled to a 5% discount on all Harnois Greenhouses and Harnois manufactured products. Simply confirm your student status at checkout.
Reserve Your Spot Today
Spots are limited. Join a growing community of greenhouse professionals who are already transforming their operations with the techniques taught in this masterclass.