22 FT Greenhouses – Solar Greenhouse Kits
Growing Dome® Classic Kit
Our 22 ft. greenhouse kits include
- UV resistant, shatter-proof, insulating polycarbonate glazing panels
- A full set of pre-cut, color-coded struts, hubs and framing plus all hardware
- Automatic opening vents
- A solar powered Climate control system
- Reflectix insulation
- Select materials for the above ground pond
- Shade cloth
- Snowshed entryway with a door with a window
- 24” foundation wall with structural siding
Complete Growing Dome kit with two polycarbonate glazing options:
Twin-wall (8mm) 22 ft.Classic Kit – ($31/sq. ft.) – $10,950
Multi-wall (16mm) 22 ft.Classic Kit – ($36/sq. ft.) – $12,450
With 5-6 hours of sunlight per day, the twin-wall polycarbonate glazing keeps the Growing Dome 15-20 degrees F warmer than the outside temperatures while the Multi-wall stays 30 degrees F warmer. We recommend the twin-wall polycarbonate for locations in plant hardiness zone 8b or higher. You can use the USDA Plant Hardiness Zone Map to look up what zone you are in using your zip code.
If you want to learn more about how much the investment would be for your particular site, click the button below.
This is what Growing Dome Owners are saying:“For me the Growing Dome in winter is my way to connect with the natural world, a place of solace where I can feel and smell the vibrancy of the living soil. To grow food in the winter is a way to enhance my appreciation for the environment.” EW – PA “Even though our plastic gutters had large holes in them from softball size hail, there was NO hail damage to our geodesic 22 foot Growing Dome greenhouse from Growing Spaces. We highly recommend the Growing Spaces to anyone interested in a solar greenhouse.” J E –WY “I celebrated the dome´s birthday yesterday Sunday 15 April 2012 with a glass of my favorite wine. It was the highlight of my life for the last 10 years.” UWS – OR
Windy Weather Package – $390
1. Do you live on a hilltop or ridge exposed to the prevailing wind?
2. Are there winds gusting to over 60 MPH in your location?
3. Do you live in a very windy area?
If you can answer “Yes” to any of these questions, then we highly recommend the Windy Weather Package for your 22 ft. Growing Dome greenhouse kit. This package for our small greenhouse adds sturdy Bayliss Hydraulicheck openers to all of the vents to prevent the openers and vents from being thrashed by strong winds. It also includes an upgraded Aluminet Shade Cloth that is designed to go on the interior of the Growing Dome.
Desert Heat Package – $500
1. Do you live in a desert or semi-desert climate (i.e. hot climate with low humidity)?
2. Do temperatures get above 95° F on a regular basis?
If you can answer “Yes” to any of these questions, then we highly recommend Desert Heat Package for your Growing Dome. This package for our small solar greenhouse kits adds a Solar Powered Cooling Fan for extra ventilation and cooling and utilizes the evaporative cooling effects of a full-surround Misting System that easily connects to your garden hose.
Solar Powered Waterfall – $290
The solar powered waterfall for the 15 ft. greenhouse kit provides aeration for the pond which the fish enjoy and helps to slow down algae formation. Even better, it creates a wonderful ambiance inside our year round greenhouses. View Growing Spaces video of our pond with a solar powered waterfall.
Metal Glazing Strips Upgrade – $650
Rather than using the clear aircraft tape that comes standard with the Growing Dome Classic Kit to seal the seams between the polycarbonate glazing panels, the Metal Glazing Strips Upgrade includes a strong roofing tape covered by custom built aluminum strips to seal the seams of the greenhouse. After 10+ years of use on our small greenhouses we have found this upgrade provides a longer lasting, lower maintenance option for sealing.
Drip Edge Flashing – $120
This Drip Edge Flashing protects the wood on the inside of the top of your foundation wall from moisture and long-term degradation. There can, at times, be enough condensation accumulate to have water or ice sitting on the top plate of the greenhouse foundation wall for prolonged periods of time. Over the years this can degrade your wood despite having the best wood treatment possible initially applied to the wood. This custom cut and bent metal flashing installs right over your top plate.
Redwood Bottom Plate – $125
The strut on the foundation wall of the geodesic greenhouse that lays flat against the ground is termed a “bottom plate”. Growing Spaces’ small greenhouses come standard with a treated ProWood bottom plate. ProWood is a safe alternative to traditional pressure treated lumber, but some gardeners preferred to go with no treatment at all. For this reason we offer an upgrade to an untreated Redwood Bottom Plate that is resistant to decay for many years.
Owner Supplied Items
The Growing Dome® is purchased as a greenhouse kit ready for assembly.
However, since a few items are bulky and costly to ship, and available at your local building supply store, they are not included in the greenhouse kit. Doing this lowers the overall cost for the Growing Dome owner.
See the Technical Specifications page for more information on Owner Supplied Items.
Growing Spaces delivers and/or ships within the United States and also ships Internationally.
Shipping / delivery, crating, and handling charges are not included in the price of the Growing Dome kit.
See our Shipping page for more information on how to receive a quote. Local sales taxes do apply for customer pick-up.
You may install the Growing Dome yourself (26′ Dome and smaller), hire a Growing Spaces Installation Supervisor to direct your crew, or you may choose to have our Full Crew install your Growing Dome kit.
To provide a seamless installation for the larger domes, 33′ kits require at least a Growing Spaces Certified Supervisor and the 42′ kit requires a Certified Supervisor plus one Growing Spaces crew member).
On a regular basis people consistently report how helpful it is to have someone trained and skilled at the build.
See details and prices on the Greenhouse Build Options Page or call us at 800-753-9333 for a quote.
Payment: 50% of the order total is due when the order is placed to reserve a shipment date. The remainder is due at least one week prior to shipping the greenhouse kit.
CALL US AT 1-800-753-9333 TO ORDER