Taking care of your cold frame is important, as it will ensure that your plants are growing strong and the frame itself isn't being worn down by the weather.

How to Maintain a Cold Frame Greenhouse

There are a few simple things that you can do to care for your cold frame, such as:


  1. Apply protective paint - Remember that the rain and sun are going to beat down on your wooden cold frame, so paint the exterior of the frame with a protective paint. The paint should keep the sun from warping the frame, and will ensure that it won't soak up the water when rain falls.
  2. Seal the interior - The inside of a cold frame can be very humid, and the humidity can rot and warp the boards. You'll want to apply a protective layer of sealant on the inside of a wooden cold frame, as that will ensure that the humidity won't cause your cold frame to rot.
  3. Check the corners - It's no surprise that the corners and joints of your cold frame will be the first to show signs of wear, so make sure to check them weekly. If you notice that they're getting worn down, replace them or reinforce them.
  4. Consider potting seedlings - If you're going to be transplanting the shoots you're growing in your cold frame, it may be a good idea to use pots to grow new seedlings. You'll find that it will be much easier to transplant them, and you won't damage the roots.
  5. Use copper fungicide - Using copper fungicide will help to reduce damping-off, so make sure to apply it whenever necessary.
  6. Paint the shade - If you are using a glass or plastic cold frame, you may not want a lot of direct sunlight striking your plants. Applying a bit of paint in the right places will help to reduce the amount of direct sunlight, but without reducing the heat absorbed by the cold frame.
  7. Use sticky traps - You want to keep the presence of flies and insects to a minimum, particularly when the plants are in bloom. Using yellow sticky traps will help to catch those pesky bugs.
  8. Be careful with watering - If you are growing a lot of little shoots in your cold frame, be gentle with the watering. Using a watering can, the sprinkler setting on your hose, or a spray bottle can help you to keep the plants safe as you water them.
  9. Open during the summer - During the hot summer days, you may want to open up the cold frame to allow the humidity to decrease. If you let the frame air out, it will be much easier to prevent it from rotting thanks to the humidity.
  10. Consider your shading - If you need shade all year round, applying a coat of paint is the way to go. However, you may want to remove it during the autumn and winter months, so consider using a layer of plastic to diffuse sunlight during the hotter months.
  11. Remove debris - When you open the cold frame to allow it to air out, you'll find that leaves, sticks, and other debris are likely to accumulate in the frame. Make sure to remove these things, as they can interfere with the pH balance of the soil inside the frame.
  12. Pull weeds - You're likely to find weeds flourishing inside the cold frame, so make sure to spend time pulling these shoots. They'll rob the soil of the nutrients needed by your plants.
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This article was written by Mr. Whitney Michael Segura, a well known entrepreneur internet marketer, garden enthusiast, and green living activist from Lafayette, Louisiana USA, area code 70508. Whitney is also a guest blogger and copywriter for Our Crazy Deals, one of the best places to shop for cold frames online.