Broccoli is worth growing for its nutritional content alone. This cole crop is rich in vitamins and minerals, and is a good source of Vitamin A, potassium, folic acid, iron, and fiber.  Once you harvest the main head of a broccoli plant, it will often keep producing smaller side shoots that can be enjoyed for months to come.
 
    
 
 
    
Plant outdoors, 12 to 20 inches apart, in holes slightly deeper than their current container depth. 
 
    
Space rows of broccoli 3 feet apart. (Closer spacing yields smaller main heads but more secondary heads.)