St. Michaels Day is always thought of as a weather predicting day. On this day, if the weather is good, the winter will be a good one. If there are many acorns, Christmas will bring snow. Most parts of the country also have what they call Michaelmas daisies--whic are really types of ASTERS--all colors from white to deep purple with yellow to bright orange centers.Each region claims them for their own-ie. New York Aster, Ohio Aster, etc... While they bloom well before this date, they are still going strong by th eend of September, frosts and all. The aster family can cause allergies in some people, but offer circulatory and digestive aid to some as well.