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1 of the most benefits of a garden raised bed plant cover is that your plants benefit from good air circulation and at least 6-hours of Sun daily. But there are times when the elements can be a little too extreme. A covered support structure positioned over your raised beds protects plants from frost, snow and extreme temperatures, as well as keeping pests from your treasured vegetables and flowers. In hot summers, exposure to too much sun can scorch seedlings and cause leafy greens to bolt. Prevent this by covering your crops with shade cloth. It can reduce light (and hence heat) up to 90 %, though most home gardeners should look for 50% blockage provided by a UV-stabilized woven or knitted fabric in green, white, or black.
