One of the most knowledgeable people in the United States on bonsai and the propagation of trees is Brent Walston. He runs a bonsai nursery in California called Evergreen Garden Works, has an excellent collection of online articles, and has a blog that he has just started posting to again. He has recently written an article on freeze protection which we don’t have to worry about as much in the South, but this winter we have seen some temps in the lower 20’s often and early. Here’s the article:
http://bonsainurseryman.typepad.com/bonsainurseryman/2009/01/freeze-protecton.html
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