Updated January 2015. The increased cost of health insurance is a central fact in any discussion of health policy and health delivery. As annual premiums edged beyond $16,800 for an average family, costs are blamed for rising uninsured and under-insurance..
Figure 1. Corn growth and temperature levels. Corn will germinate and grow slowly at about 50 F (10 C), but the average first spring planting dates across the U.S. usually begin when the average air temperatures reach 55 F (13 C) and soil temperature at seed depth is favorable for seedling growth.
Sweet corn is a warm-season vegetable requiring soil temperatures between 60-90 degrees F. Avoid planting seed in cool soils. Wait until at least two weeks after the last average killing frost before planting.If planted too early, weak stands, stunted growth or frost-killed seedlings may result.weet corn is a warm-season vegetable requiring soil temperatures between 60-90 degrees F. Avoid planting seed in cool soils. Wait until at least two weeks after the last average killing frost before planting.