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.
Growing Corn and Corn Plant Care. Corn is most productive when the daytime temperatures are between 77 and 91 F. (12-33 C.) and the temperatures at night are between 52 and 74 F. (11-23 C.). Corn needs lots of moisture, especially on hot and sunny days when the humidity is low.