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 If you are transplanting seedlings, space spinach plants about 12 to 18 inches (30.5 to 45.7 cm) apart. 2  This allows the seedlings to grow and expand their roots without competing with each other for space.3  You can either purchase seedlings at your local nursery or garden supply store or start them indoors in peat pots. During a spring harvest, plants will grow tall and small flowers will bloom as soon as the temperature increases and the sun is out for longer than 14 hours per day. 2  This process is called bolting and it disrupts the production of spinach leaves.