Although it is never going to be a national sport, gardening does have many benefits, especially for the gardener. So much so that many people look forward to the gardening season and hate having to wait for the weather to catch up. But do they really need to wait? This underground greenhouse can make for year round gardening.
There’s a sense of accomplishment and boost of self-esteem that comes from presenting fruits and vegetables grown by yours truly in your own garden. Some people garden to pay the bills, others garden to make their house look good, while many engage in this serene outdoor activity for its health benefits.
Whatever your reason for gardening, you’ll definitely benefit from having an enclosed, indoor space that protects your precious produce from the elements. Greenhouses are specially designed structures with walls and roofs made of transparent materials, such as glass, in which plants can produce fresh flowers, fruit, and vegetables all year round.
There are actually two types of greenhouses you can use. The first is a regular greenhouse, which simply acts as a season extender, extending your growing season for about two or three more weeks in the spring and fall. The second is the growing dome, a typically larger, stronger, and more regulated version of the regular greenhouse, which creates an enclosed, indoor garden allowing you to grow all year round. 
Many people erect greenhouses in their gardens. They are ideal for growing new seedlings later and earlier in the year, and protecting plants from the cold. However, building greenhouses can be very expensive, putting amateur gardeners and hobbyists off the idea.
Thankfully, gardening fanatics have a great alternative to try: a “walipini,” which allows them to grow fruits and veggies 365 days a year, yes, even through the winter. When growing in colder climates, gardeners often have to utilize various techniques to extend their growing time frame. This includes erecting hoop houses, cold frames, or greenhouses to protect their crops.