Fall is here, the temps are getting to freezing st night and we are finally doing an update on our greenhouse for winter gardening. We have the hardy and moderately hardy crops in our greenhouse and we are about to begin testing it. This first winter we are going to be growing cabbage, broccoli, cauliflower, onions, beets, radish, beans, spinach, kale and chard. We still have some unused space left. For it we are considering carrots, collard greens and turnips. We also have some herbs growing in our winter gardening greenhouse, basil dill and cilantro.
As the temperatures begin to drop we will start the process of buttoning up greenhouse in preparation of keeping it warm enough to allow us to grow a winter garden all the way through until spring.
To accomplish this, we have built this greenhouse with a 95 ton rock heat sink under the soil inside the foot print of the greenhouse. The rock heat sinks serves as a thermal mass, and we hope it is going to allow us to keep the greenhouse temps close enough to freezing at night that our hardy crops will still survive.
During the day, the heat is drawn from the peak of the greenhouse and pushed back through the heat sink. This will be our first year testing it, so be sure to subscribe so you can follow our journey as we find out what this system will do.