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.
Cover the seeds with a couple of inches of soil. Seed pieces should be 12 to 18 inches apart. Each time the potatoes add 6 inches of growth, more soil should be mounded around the base of the plant so that by the time the plant is 18 inches tall, the mound is 4 to 5 inches high.