Dorchester, Wisconsin. Dorchester is a village in Clark and Marathon counties in the U.S. state of Wisconsin, along the 45th parallel. It is part of the Wausau, Wisconsin Metropolitan Statistical Area. The population was 876 at the 2010 census. Of this, 871 were in Clark County, and only 5 were in Marathon County.
Petunias have a base temperature of about 39 degrees F and are considered cold tolerant; however, freezing temperatures can kill petunias because the plants' cells need the sun's energy for photosynthesis.nce petunias have endured frost or freeze injury, there is not much you can do to save the plant. At times, frost-injured plant parts can be cut back, and plants may outgrow the damage. Petunias can survive the light frost of southern climates, as petunias will come back in the spring following a hard freeze.
It's quite another to maintain flowers and plants at this temperature. Even if a cooler operates at the right temperature, crops themselves may rest at a different temperature. Thus, proper storage temperatures and effective heat exchange are required. The cooler temperature should be within plus or minus one to two degrees of the ideal flower/plant storage temperature. Check the average cooler temperature by measuring the water temperature in a five gallon bucket held in the cooler. All coolers should have at least two thermometers to obtain temperature ranges within the cooler. Use one thermometer as a control for the other.