I live in northern Alabama and it gets "cold" here in the winter (can reach sub zero for a few days a year)... Looking for tips about how to get my Bermuda grass ready for winter... Specifically, how do I make the last cut? Should I let it be especially long to protect the roots, or cut it short to promote new growth. I've heard both opinions from self proclaimed "landscaping experts"... I've even heard of some people setting fire to their yards to promote better growth the following year, although I can't do this because of local burning ordinances, etc... Any advice?