I expect the grape leaves will fall since the low temperature predicted for today may be in the 20s. GDD base 50 accumulated since April 1 = 3556 http://agebb.missouri.edu/weather/reports/gddTable.asp Here is a comparison of the GDD base 50 accumulation for the past several years. Year GGD accumulation base 50 April 1 to Oct … [Read more...] about End of the growing season