Tunnel house, greenhouse and cold frame garden structures are all great choices growing plants in the winter, but what, exactly is the difference between the three of them?
Technically they do the exact same job which is protect plants from the cold weather outside during the winter months.
However each one has a slightly different purpose, although they are very interchangeable depending on what you intend to do with them.
Personally I prefer tunnel houses and greenhouses instead of cold frames simply because I like to be inside in the winter.
However you may feel completely different.
Here is a breakdown.
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