We bottomed out at about 34.5 according to my thermometer. I have a few roses with baby leaves and they appeared to be ok. No visible damage to my peonies or irises. Tonight may be a bit warmer. We have temperature gradients about every 50 miles here so it is difficult to predict within a few degrees. Farmers to the north of here jumped the gun and planted corn in mid March and they are probably holding their breath now.
