I planted a winter garden January 2, the day the onion transplants arrived from a Texas farm. In addition to the onions, I planted lettuce, snap peas, and radishes. There were also two veggie plants wintering over. They were veterans of two winters, a Brussels sprout and a kale. So, the January freeze came. Here is how I prepared these plants for cold weather.
Preparation: For an 8 x 4 foot row, I had hoops, frost cloth, and clips on hand. I find I need two packages that t. Also, in my case I had a second cover in the form of a twin fitted sheet.
- Scrape back the four or so inches of mulch you have previously put down in preparation. The result should be a wave pattern, with soil at the bottom of the valleys.
- Plant or transplant.
- Set up the hoops every foot and a half.
- Is a frosty night or below freezing weather coming?
- Water the garden the day before.
- Clip frost cloth to the hoops. Anchor the ends with bricks or pave stones.
- Clip the sheet to the frost cloth.
- By hand, pull mulch over the plants in the valleys.
- Wait out the storm. Safety note: buy some clip-on crampons for your shoes, so that you can walk on ice.
- Above freezing again? Pull off the covers, leaving the hoops (or go half-way to save time, if this is only a temporary reprieve. Pull back the mulch.
Results (in my case): There were three nights of freezing temperatures in late January. The temperature got down to 13 degrees one night. There were several kinds of freezing precipitation at the beginning. Most of it fell as sleet, and I think it bounced off the covering, which was clear of clinging ice or snow when I checked. The surrounding ground had an icepack, but the protected part of the garden was clear.
Results by plant, two weeks pot-freeze.
- Protected onions: They loved it! Under the cover they had thrived, showing growth.
- Unprotected onions: They survived. I watered them, and two weeks later, they are about 95% back.
- The radishes had radished, so I harvested about a cup and a half.
- The lettuce also flourished, enough to thin.
- The peas were the most tender. The stems had died back, but two weeks later the plants had out secondary stems.
- Unprotected kale and brussels sprouts, they both survived. We just cut off any foliage that had turned white.
Conclusion: this took minimal time and not much cost. You can single-hand it during set up, but two people can do it a lot quicker.
Pictures:
What I got from Amazon: Two boxes containing light green clips, hoop pieces, connectors that are in the plastic bag. You connect the hoop pieces with the connectors, put up the freeze cloth, plastic sheets, etc. and clip with the light green clips. You can do an Amazon Search for “garden hoops” and “plant covers” or “row covers.” Total outlay in 2026: about $30, assuming you can spare an old twin size fitted sheet.
The fitted sheet was fitted over the freeze cloth. Note the kale plant which I didn’t protect from the freeze. It survived, anyway. This photo was taken in the afternoon before the freeze.
Lettuce seedlings above and struggling frost damaged edible pod sugar peas in the foreground.
The onions on the left were protected. They didn’t lose a beat. In fact, they thrived through the freeze. The onions on the right were not protected. Most survived, even the tiny ones, though some had only a quarter inch of green left on the stem. If you order onions, they arrive the first week of January, with the expectation that you will plant them right away,
by Paul Thomas, ECMG



















