Jacob Petersheim
Well-known member
I suppose that far North a greenhouse isn't practical for extending the season much further. Even with a heat source there probably won't be enough daylight.
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That is true to a point. At the equinox, we will have about 12 hours of full daylight, plenty to grow stuff. That decreases quite rapidly after that though, and it is not practical to heat a greenhouse much into October both for light and heat reasons. The people who grow beyond that, which we sometimes do, is best done under artificial lights in a warmer environment. We can use heat to exend seasons beyond frost, but our big greenhouse is heated with wood, and we are getting too old to do that for more than a few days. My smaller greenhouse is electrically heated, so that can stay in operation a little longer, but that, too, becomes impractical when the temperatures are below freezing for more than a few days. I have a "heated" attached greenhouse that also serves as an entryway (or arctic entry in Alaska talk) and that stays in the 50s all winter. My wife overwinters her roses there and they are blooming from late February onward.I suppose that far North a greenhouse isn't practical for extending the season much further. Even with a heat source there probably won't be enough daylight.
OK, we'll be up Tuesday.We had one of the most productive gardens in years, but it got started slow, as the first two weeks of June were still frosty and we planted the big greenhouse where most of our tomatoes reside with the woodstove blazing away. Our apples were/are fantastic, one of our cherry trees set more fruit than ever, and the raspberries produced more than we could even give away. I think I have posted about our beans, Those, too, were the best in years and turnips grew larger and better than in many years. Tomatoes were slow to start ripening, and we had ripe peppers before we had ripe tomatoes--a first for us, as we grow several very early tomato varieties. We are now covered with ripe tomatoes, which will be roasted and frozen today, and several shelves of green tomatoes and tomatillos awaiting ripening. Out little greenhouse is electrically heated, so we still have peppers and tomato plants in there where they will remain until we return next week.
Cabbage, cauliflower, and broccoli also got off to a slow start, but the broccoli is nearly done now and the cauliflower is beginning to roar. Only a few of the earlier cabbages have been harvested, and there are still lots of beets, rutabagas, and potatoes to harvest.
Overall, far more food than two old people can eat in a year, but we always hope for guests and family to visit.