10. Geodesic Dome Greenhouse
Perhaps my favorite, this greenhouse type is not only appealing to the eye, it comes with several benefits.
- It is lightweight and yet firm and strong.
- Enough strength that it is steady and wind resistant.
- It’s design favors maximum light absorption.
- The structure is designed in away that internal supports are not needed, allowing more floor area available for plant growth.
It reminds me of R. Buckminster Fuller’s Dome inventions built to improve human shelter. The only drawback is that installing an aquaponic system would be very difficult. The panel covering allows too much sun exposure and ventilation wouldn’t be inadequate.
11. Cold Frame and Hot Bed Greenhouse
This is the smallest of the greenhouse type, in fact many would say it’s not a greenhouse at all. We’ll call it a mini greenhouse for the heck of it.
- Deliver shelter to tender seedlings early in the spring until it’s safe enough to transfer then to the garden.
- Overwintering summer clippings of woody plants.
- Gardeners with limited backyard space.
There’s only about 5 to 10 degrees difference between the interior and outside of the cold frame. Very little heat retained inside so blankets are placed over the top panel to conserve a few degrees of heat.
The Hot bed version is essentially a heated cold frame. Again, there is limited space for prolonging the grow season, but increased heat is created by placing heat coils underneath the frame in a bed of gravel. Other heating methods are light bulbs, electric cables, bales of hay, and manure.