Extending the Harvest with Covered Hoops

Last year I began experimenting with extending the growing season and harvesting fresh food through autumn. In fact, I was able to harvest backyard veggies for the last time on December 1st! After that we had an unseasonal cold snap and early snow (I live in the moderate pacific northwest where we are increasingly finishing winter with little to no snow). Luckily some of my cold resistant veggies bounced back enough by late winter that I could start harvesting them again in February and March.

But one of my faults as a backyard gardener is that I often forget to harvest the veggies before they bolt (go to seed) in the summer or freeze in the winter. I'm always disappointed that I didn't pick something when I thought of it instead of waiting just that one more day or week. Hardy plants like kale did well with limited frosts and bounced back quickly, but my turnips, carrots, and cabbage were turned to mush in the freezing temps and never rebounded.

Through the summer, after doing more reading about fall and winter gardening, and weighing the pros and cons of cold frames versus covered hoops (an excellent discussion here), I decided to try covered hoops this year. Sometimes plastic covered hoops made with flexible tubing are called low tunnels, and the taller variety are called poly tunnels. I guess mine are a hybrid (not low but not tall enough to walk in).

My wonderful neighbour (really, he's amazing) and built my covered hoops once I'd cleaned up the fall garden and mulched everything for warmth and moisture retention. Unfortunately we'd already had a frost, so there has been some damage to the lettuce and Asian greens, which I'd hoped to avoid.

With the sides down for full protection.

With the sides up for moisture in warmer temperatures.

So how well do the covered hoops work to protect my plants?


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