Heart & Blood Vessels: Your Coronary Arteries. The heart receives its own supply of blood from the coronary arteries. Two major coronary arteries branch off from the aorta near the point where the aorta and the left ventricle meet. These arteries and their branches supply all parts of the heart muscle with blood.
Mound the soil into a raised rows to a height of 8 to 12 inches and 6 to 8 inches wide, spaced 3 to 4 feet apart. This provides loose soil for the formation of tubers and promotes healthy growth. Plant sweet potato slips 10 to 12 inches apart and firm the soil down with your hands to secure the plant. Water thoroughly to moisten the mound of soil. Keep soil evenly moist until new growth appears. Mulch with organic matter to conserve moisture and prevent weeds.
Plant about 2 to 4 weeks before your last frost date. The soil temperature should be at least 40 F. Do not plant where you've grown potatoes, tomatoes, peppers or eggplant in the past 2 years. One common way to plant potatoes is to dig a shallow trench about 4 inches deep with a hoe. Place the seed potato pieces with their eyes up (cut sides down) about 8 to 12 inches apart in the trench, and replace soil. Space trenches about 2 to 3 feet apart.