Answer: I build a protective cover for most of my sensitive trees using a a wooden framework covered by shade cloth--beware of using clear plastic. I cover the framework with 50% shade cloth on top, east and west sides and 75% shade cloth on the north side. I leave the south side open. The north side protection reduces the chilling and drying effect of winter winds. A similar approach which reportedly protects plants is to enclose the entire plant with a product called Agrinet. This material is very light and is easily supported by the tree's limbs. It is also available from mail order suppliers.
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