cold house
Quick Summary
A "cold house" in horticulture is a greenhouse that is not heated and is maintained at low temperatures. It is suitable for plants that can tolerate a few degrees of frost, such as alpines or potted bulbous plants. These structures rely on the sun's warmth and protection from wind to keep them warmer than the outside temperature.12
Greenhouses, in general, are structures designed to protect plants from extreme cold or heat, allowing for the cultivation of tender or out-of-season plants. They can be heated and have their temperature regulated to create controlled environments for specific plants. Different types of greenhouses exist, categorized by their minimum nighttime temperatures, ranging from coolhouses to intermediate houses and hothouses, each supporting different plant varieties.342
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