Although spring only officially starts on September 1, we don’t need a calendar to see that spring is on the way.For most of the country there is a delightful springiness in the air. Although August is warm to even hot in parts of the country, apply these rules when planting or sowing plants that are sensitive to frost damage:In frost-free areas, start planting at the beginning of August.In areas of light to moderate frost that lasts until about the end of August, plant in early September.In areas with late frosts or winter rainfall, wait until late September.Push aside the winter chills…