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.
Collards aren't just for growing in the South. They are nearly as cold resistant as kale and cabbage, but are better known as a Southern green because they can tolerate more heat. Planting: Sow seeds 1/4 inch deep in spring, 4 weeks before the last expected frost. Space seedlings 1 foot apart in rows 3 feet apart. For a fall crop, broadcast seed 8 to 10 weeks before the first expected frost; thin to 12 inches apart. Growing guidelines: Foliar feed with liquid seaweed extract 2 to 3 times during the growing season. Problems: See the cabbage entry for disease and insect control measures.