COLD FRAME GREENHOUSES
Turn winter months into revenue months. OMNI’s cold frame structures help Canadian growers protect inventory, start crops earlier, and harvest later—extending your profitable growing season by weeks without the operating costs of heated greenhouse production.
Practical & Economical Season Extension
Cold frame greenhouses provide affordable crop protection in a low-profile, practical structure that’s perfect for small to mid-size operations looking to maximize their growing season. These specialized systems offer essential protection from frost, wind, and harsh weather while maintaining a cost-effective investment.
OMNI cold frame structures are essential infrastructure for nurseries, market gardens, and seasonal growers throughout Canada and the United States. Use them for overwintering hardy nursery stock, hardening off greenhouse-grown transplants, early spring production, fall harvest extension, and protecting perennials through winter months. Many growers utilize cold frames for multiple purposes throughout the year, maximizing their return on investment.
Since 1988, OMNI has been helping growers succeed with innovative, durable structures. We understand that every dollar counts for small to mid-size operations, which is why our cold frames deliver maximum value—extending your profitable growing windows without the high costs of traditional heated greenhouse production.
Key Advantages of OMNI Cold Frame Greenhouses
Cost-effective investment compared to traditional greenhouses while still providing essential crop protection. Our cold frames focus on what matters most—protecting your plants and extending your profitable growing windows—without unnecessary complexity or expense.
Reduced structure height lowers material costs and wind resistance while providing adequate growing space for containerized plants, row crops, and transplant production. The compact profile makes cold frames practical for diverse site conditions and easier to integrate into existing operations.
Use for overwintering hardy nursery stock, hardening off greenhouse-grown transplants, early spring production, fall harvest extension, and protecting perennials through winter. Many growers utilize cold frames for multiple purposes throughout the year, maximizing their return on investment.
Engineered for straightforward assembly and long-term reliability. OMNI's cold frames are designed to be easy to assemble while providing the weather-resistant performance you need. We focus on delivering dependable structures that serve your operation for years with minimal maintenance.
How Cold Frame Greenhouses
Fit Your Operation
Nursery Overwintering
Protect containerized perennials, shrubs, and nursery stock through winter months. Cold frames provide crucial protection from extreme cold, desiccating winds, and damaging freeze-thaw cycles—helping small to mid-size nurseries protect inventory without the expense of heated greenhouse space.
Market Gardens & Farms
Start transplants earlier than field planting dates, extend fall harvest by several weeks, and grow cold-hardy crops through winter months. Perfect for market gardeners seeking season extension without the operational costs of heated greenhouse production—increasing revenue while controlling expenses.
Transplant Hardening & Production
Bridge the gap between heated propagation greenhouses and field production. Use cold frames to gradually acclimate tender transplants to outdoor conditions, reducing transplant shock and improving establishment success rates—critical for growers who need every plant to thrive.
Frequently Asked Questions
What is the difference between a cold frame and a regular greenhouse?
Cold frames are low-profile structures designed primarily for season extension and crop protection, typically without supplemental heating. They’re more economical than traditional greenhouses and ideal for hardy plants, overwintering, and crops that don’t require full climate control—perfect for cost-conscious small to mid-size operations.
What can I grow in a cold frame through winter?
Cold frames can protect a variety of cold-hardy plants through winter, including overwintering nursery stock, hardy herbs, winter greens, and perennials. The specific crops depend on your climate zone. OMNI’s personalized approach means we’ll work with you to recommend the best applications for your location and business goals.
How much do OMNI cold frame structures cost?
We provide custom quotes based on your specific size requirements and configuration. Cold frames typically represent a lower-cost investment compared to traditional greenhouse structures while still delivering excellent value through extended growing seasons. Contact us for a detailed quote tailored to your operation.
Are OMNI cold frame greenshouses easy to assemble?
Yes. OMNI structures are designed with assembly in mind. Our cold frames feature straightforward construction that reduces installation time and labor costs. We provide detailed instructions and personalized support to ensure successful setup for your operation.
Can cold frame structures be used year-round?
Absolutely. Many small to mid-size growers utilize cold frames across all seasons for different purposes—spring transplant production, summer protection for specific crops, fall harvest extension, and winter inventory protection. This versatility maximizes your return on investment throughout the year.
Does OMNI serve my area?
OMNI Structures serves customers throughout North America—both Canada and the United States. Our strategic location in Vineland, Ontario (near the Canada/U.S. border) ensures efficient distribution whether you’re across Ontario, in British Columbia, or anywhere in the U.S.
Let’s plan your cold frame greenhouse.
1 - Quote
Submit your request to our team.
2 - Consult
We'll discuss configuration options specific to your needs.
3 - Review
Receive a clear proposal tailored for your operation.
4 - Coordinate
Align on delivery timelines and installation support.
Why Choose OMNI Structures
- Serving North America Since 1988
- Part of Paul Boers Manufacturing Family (Est. 1958)
- Personalized Approach for Small to Mid-Size Growers
- Durable, Cost-Effective, Innovative Solutions
- Easy to Assemble, Strong & Weather-Resistant
- Strategic Location Near Canada/U.S. Border