Year-round greenhouses
Growing Dome: Four-Season Geodesic Greenhouse
State-of-the-art geodesic greenhouses in six sizes, top-quality materials, customizable kits, manufactured in Ontario and shipped nationwide across Canada.
Starting at $9,950 CAD
Built for the Canadian Climate
Made in Canada
Greenhouse kits made in and for Canada. Designed and manufactured in Ontario using quality materials selected for Canadian conditions and four-season use, with direct support from the Arctic Acres team.
Tundra-Tested Design
Developed through years of use in northern and remote communities, Growing Domes are geodesic dome greenhouses designed to perform through demanding seasonal temperature changes.
Passive Solar Greenhouse
The geodesic dome structure captures sunlight throughout the day, while thermal mass and ventilation help retain and regulate heat naturally for a passively-powered approach.
Four-Season Greenhouse
Extend your growing season and create a protected gardening environment that can support year-round production with appropriate crop selection and climate planning.
Self-Regulating and Energy Efficient
Integrated ventilation, thermal mass, insulation, and solar-powered systems work together to moderate temperatures while reducing reliance on conventional heating and cooling.
Diffused Light and UV Protection
Multi-wall polycarbonate panels diffuse sunlight throughout the dome, helping reduce harsh hot spots while protecting plants from excessive ultraviolet exposure.
Winter Gardening
The insulated growing environment retains solar warmth and protects crops from wind, frost, and snow, making cold-season gardening more practical.
Storm Resistant
The geodesic frame distributes wind and snow loads across the structure, providing exceptional strength and stability in challenging weather conditions.
High Performance
Engineered for durability, light distribution, temperature management, and efficient growing, every system works together to create a productive greenhouse environment.
Ready To Build Kits
Each Growing Dome arrives as a complete, organized kit with pre-cut components, detailed instructions, and planning support for an efficient on-site assembly.
Compare the Six Sizes
Every Growing Dome is the same design: four-season geodesic greenhouse kits, from a compact backyard 15 ft kits, to large 42 ft units ideal for community and commercial use. Find the size that fits your space and your plans.
15 ft15 ft Growing Dome Geodesic Greenhouse Kit
18 ft18 ft Growing Dome Geodesic Greenhouse Kit
22 ft22 ft Growing Dome Geodesic Greenhouse Kit
26 ft26 ft Growing Dome Geodesic Greenhouse Kit
33 ft33 ft Growing Dome Geodesic Greenhouse Kit
42 ft42 ft Growing Dome Geodesic Greenhouse Kit
Stories, Videos and Walkthroughs
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Exploring AlternativesExploring Alternatives features backyard permaculture prodigies Deborah and Gabe, and Arctic Acres’ own Ben Canning on an in-depth tour!
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My Self RelianceCanadian outdoorsman Shawn James builds his Growing Dome greenhouse and educates about living a self-reliant lifestyle.
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Eamon and BecToronto-based YouTube creators Eamon and Bec stay positive and productive working through their newest project: a dome greenhouse.
How a Growing Dome Works
Every Growing Dome combines a geodesic shell with a climate system that holds its temperature through a Canadian winter. Here is what goes into one.
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Geodesic designA triangulated geodesic shape spreads snow and wind load evenly across the whole structure, so it stays strong with less framing material and lets light reach every corner of the dome. -
Polycarbonate panelsTwin-wall, UV-resistant polycarbonate glazing insulates far better than single-pane glass while staying light, shatter-resistant and easy to ship in a kit. -
Structural framingPre-cut, colour-coded struts and hardware assemble into a rigid frame on site, with no crane required. -
Reflective north-wall insulationAn insulated, reflective north wall cuts heat loss and bounces daylight back onto your plants instead of out the back of the dome. -
Above-ground pond / climate batteryA central water tank acts as a thermal battery: it soaks up daytime heat and releases it overnight to even out the temperature swing. -
Intake and exhaust fansAutomatic intake and exhaust venting manages airflow and summer heat so the dome breathes without constant attention. -
Solar-powered undersoil systemA 12V solar undersoil loop moves warmth into the root zone, keeping soil active when the air outside is below freezing. -
Snowshed entrywayA snowshed entry with a 36 by 80 inch door keeps weather out and gives you a sheltered way in and out. -
Foundation wallA 24 inch foundation wall anchors the dome and adds insulated thermal mass at the base. -
Warranties and supportKits include full online guide access, video and Canadian support, backed by the warranty terms confirmed with your quote.
What’s Included and Upgrades
In the kitWhat’s IncludedFrame, glazing, vents and fans, the solar undersoil system, hardware and assembly guides.See the full kit 
Western Red CedarLonger-lasting, naturally resistant framing with a rich, warm finish.
SkylightFive solid clear polycarbonate panels for an open view of the sky.
Airlock Entryway VestibuleAn extended entry that keeps the growing climate inside steady.
Additional Snowshed Entryway + DoorA second way in and out for larger domes, schools and groups.
Video Tour Walkthrough
Growing Dome Video Walkthroughs
Explore each of our six Growing Dome size options in the guided video below, showcasing many of the core features, layout options, and customizations you can include to make your Growing Dome truly fit your vision.
The Growing Dome Planning Guide
Everything that goes into a build, from picking a size and a foundation to permits, delivery and the first season of ownership.
- 1 This is a Growing Dome
- 2 Choosing the Right Size
- 3 Build Site Selection
- 4 Climate, Utilities & Year-Round Use
- 5 Ownership Expectations
- 6 Choosing the Right Foundation
- 7 Owner-Supplied Items & Accessories
- 8 Permitting & Approvals
- 9 Delivery & Site Preparation
- 10 Assembly & Installation
- 11 Budgeting & Project Planning
- 12 Maintenance Overview
- 13 Next Steps
- 14 Continued Learning & Resources
Growing Domes 2026 Catalogue
The full range of Growing Domes, sizes, what’s included and upgrades, with pricing in CAD.
From Quote to Delivery
No cart and no online payment. You send a request, we price it for your site, and the order is confirmed with you directly.
- 1 Request a quoteThis will give you a clear breakdown of pricing, shipping, and more based on your dome size, upgrades, and location.
- 2 Confirm your orderWhen you are ready to proceed, confirm your quote by email or phone.
- 3 Submit your depositA 50% down payment is required to secure your order and production timeline.
- 4 Finalize paperworkArctic Acres will issue the required order documents, including your sales agreement and invoice.
- 5 Prepare for deliveryOnce your order is in production, our team will coordinate shipping details and help you prepare for receiving your kit.
Frequently Asked Questions
What are Growing Domes?
Growing Domes® are a proprietary geodesic greenhouse product owned by our American partner Growing Spaces Inc. in Pagosa Springs, Colorado. They are masterfully engineered dome structures that are designed to be the best greenhouses available. They come equipped with features and capabilities mentioned on the Growing Dome webpage and catalogue, and are highly customizable for both professional and recreational use.
What are Growing Domes used for?
Aside from their good looks, Growing Domes are advanced pieces of technology designed to create a secure, comfortable, sustainable, self-regulating environment inside (while keeping out anything from gale-force winds and mounds of snow to unwanted pests and harmful UV rays). These domes are perfect for horticulture, gardening, and more.
How much does a Growing Dome cost?
Where are Growing Domes manufactured?
Every Arctic Acres Growing Dome is made to order in Portland Ontario, delivered locally, and shipped nationwide across Canada.
Will a Growing Dome work for my situation?
Growing Domes are adaptable structures that can be customized to fit your specific needs and wants. We recommend exploring our website and social media, reaching out to a member of the Growing Dome community, or speak to our team directly. If it can be done in a dome, we’ll let you know!
Do I need a building permit?
If you live in a subdivision or controlled development, chances are you will need to get approval from your Homeowners Association or municipality to install a Growing Dome. We can provide engineering plans and written instructions/diagrams. Site plans, submission of the permit application, and any additional engineering fees are the responsibility of the purchaser or landowner. Our team is available to assist should you have any questions or hurdles with your permit application.
How can I see one?
How long will the dome last?
Is this the same product as Growing Spaces? Any differences?
How do Growing Domes stay warm during the Winter?
The greenhouse is equipped with a sophisticated self-regulated heating system that harnesses the sun's natural warmth. Specially designed insulated panels focus sunlight onto a central water tank, creating optimal growing conditions. An insulated north-facing wall traps warm air, while an insulated foundation ring prevents frost and maintains a stable ground temperature inside the dome.
In addition, every Growing Dome Greenhouse includes a standard aeration system beneath the soil of the raised garden beds. This innovative system leverages the consistent temperature of the soil, tapping into its thermal mass to store and release energy. Additional geothermal systems can be added for an enhanced effect. Solar-powered fans circulate air within the greenhouse, contributing to a well-balanced environment.
With optimal sun exposure, the combined effect of these features enables the dome to maintain a temperature approximately 20-25ºC warmer than the outside conditions. For very cold winter temperatures, some owners choose to supplement with additional heating options such as electric heaters, propane units, or wood-fired stoves. Others have found success with Ground to Air Heat Transfer (GAHT) systems as part of their foundation for an extra source of heat.