Winter Greenhouse Tips

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Whether you’re a novice gardener or expert grower, extending the growing season and increasing yield are always top priority. For some, that can be a challenge during bitter cold temperatures. Luckily, greenhouses are a perfect solution for controlling the temperature to allow for an ideal climate for crops. Here are some tips to make sure your winter greenhouse is ready for the frigid temperatures this season.

Winter Greenhouse Preparation

The first thing you should do when preparing your winter greenhouse is to clean up from last season. Giving your greenhouse a clean slate helps combat pests and manage algae and pathogens that could hurt your plants. It will also elongate the life of your greenhouse. To learn more about how to properly clean your greenhouse, here are some simple tips.

Then it’s time to decide what to grow. Growing Spaces suggests growing frost hardy plants that include:

  • Root crops like beets, turnips, and carrots
  • Leafy greens like cabbage, kale, spinach, and swiss chard
  • Herbs like rosemary, sage, oregano, and thyme

It’s always a good idea to check this interactive USDA hardiness zone map to decide what crops will grow the best in your area of the country.

Tips for Optimal Winter Greenhouse Performance

When you choose a durable and quality greenhouse like GrowIT Heavy Duty Round Greenhouse, you’re already on the right track for ideal temperature control. The roll-up side panels and half-moon screen vents will give optimal airflow, while the ClearView triple-layer ripstop cover gives enhanced illumination and protection for your crops. This model is perfect for growing crops in the winter, with its quality construction and easy assembly. This greenhouse also includes:

  • ShelterLock stabilizers and Ratchet Tite tensioning for added stability
  • 1 5/8 in. heavy-duty all-steel frame
  • Easy Slide Cross Rail System

After cleaning your greenhouse in preparation for winter’s harsh temperatures, there are a few other simple tricks you can do to give your plants the best chance at thriving this winter season. Off the Grid suggests adding black wood mulch for the walkways. This will absorb more sunlight and naturally trap heat, which will come in handy if you are trying stay away from using a heater for your greenhouse.

Another cost-effective way to keep your winter greenhouse warm is to add a containers of water in your greenhouse. Total Landscape Care suggests large barrels for a big greenhouse, or small gallon jugs for one with a smaller footprint. During the day, these jugs of water will absorb heat if kept in direct sunlight. Then, at night, it will release the heat and naturally heat your greenhouse!

In many climates, these natural tricks will be enough to control the temperature in your greenhouse. But, in some of the coldest climates, some choose to add a heater. Just be careful to not overheat, as that can cause problems for your plants.


With a little planning before the frigid temperatures arrive, you can be assured your crops will thrive during the chilly season with the best greenhouse for your backyard space. These simple tips and tricks will get you on track for the perfect winter greenhouse!

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