The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.
This planter also holds begonia, marigolds, and a pepper plant. Growing Swiss chard works best in rich, moist soil with a soil pH between 6.0 and 6.8. Plant about 12 to 18 inches apart in fertile soil, watering directly after planting. Work nitrogen-rich amendments such as blood meal, cottonseed meal, feather meal, or composted manure into the ground before planting.
1 Sow seeds a half inch deep in rows 2 feet apart. 2  Collard greens should be thinned gradually to stand about 15 inches apart. 3  Thinning can be postponed until the plants are big enough to cook up a mess of greens. 4  Collards have the same fertilizing and watering requirements as cabbage.